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Elizabeth Yang15/09/2014, 08:45Performed by Nordita's secretary Elizabeth Yang. The registration will continue during the whole week. Therefore participants which do not reach to be registered during the period given here (i. e. 8:45 - 9:30) can do it afterwards, for instance within the lunch time.Go to contribution page
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Axel Brandenburg15/09/2014, 09:30Prof. Axel Brandenburg is a member of the Board and Deputy Director of Nordita.Go to contribution page
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Charles Horowitz15/09/2014, 10:00Dense nuclear matter, near the base of the crust in neutron stars, is expected to have complex nuclear pasta shapes because of coulomb frustration. Competition between short-range nuclear attraction and long-range coulomb repulsion insures that many different shapes have very similar energies. We report large-scale molecular dynamics simulations of nuclear pasta and find long-lived...Go to contribution page
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Aurel Bulgac15/09/2014, 11:00The fascinating dynamics of superfluids, often referred to as quantum coherence revealed at macroscopic scale, has challenged both experimentalists and theorists for more than a century now, starting with electron superconductivity discovered in 1911 by Heike Kamerlingh Onnes. The phenomenological two-fluid model of Tizsa and its final formulation due to Landau, is ultimately a...Go to contribution page
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Annica Black-Schaffer15/09/2014, 11:40I will present results on using a lattice tight-binding Bogoliubov-de Gennes formulation of nonuniform superconducting systems and solving self-consistently for the superconducting order parameter. Systems studied include Josephson junctions in graphene and spin-orbit coupled semiconductors, superconducting vortices in spin-orbit coupled semiconductors, and studies of the local effect...Go to contribution page
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15/09/2014, 12:20
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Constantine Yannouleas15/09/2014, 14:30The physics of condensed-matter nanosystems exhibits remarkable analogies with atomic nuclei. Examples are: Plasmons corresponding to Giant resonances [1], electronic shells, de- formed shapes, and fission [2], beta-type decay, strongly correlated phenomena associated with symmetry breaking and symmetry restoration [3], etc. Most recently, analogies with relativistic quantum-field...Go to contribution page
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Yang Sun15/09/2014, 15:10In performing shell-model calculations for large nuclear systems, the central issue is how to truncate the shell-model space efficiently. It corresponds to a proper arrangement of the configuration space to separate the most important part from the rest of the space. There are different schemes for the shell-model truncation. Considering the fact that most nuclei in the nuclear...Go to contribution page
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Nicolas Michel15/09/2014, 16:10Nuclei at drip-lines bear unique properties such as halos or resonant character at ground state level, inexistent in the valley of stability. While the latter consists of standard closed quantum systems, drip-line nuclei are open quantum systems, so that models describing their properties must include both nuclear inter-correlations and continuum degrees of freedom. Coupled Cluster and...Go to contribution page
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15/09/2014, 16:50
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Joseph Carlson16/09/2014, 09:00I describe the use of Quantum Monte Carlo Methods to study low- and high-energy excitations of the Unitary Fermi Gas. We have employed Auxiliary Field Quantum Monte Carlo methods to study this regime of strong pairing in the inhomogeneous gas. The scale invariance of the system places strong constraints on the form of the density functional, unlike nuclear density functionals it can...Go to contribution page
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Lode Pollet16/09/2014, 09:40Quantum simulators are special purpose devices designed to provide physical insight in a specific quantum problem that is hard to study in the laboratory and impossible on a computer. However, before they can be used they require calibration. For cold atomic systems, quantum Monte Carlo simulations have played a key role there. They established a few years ago that the thermodynamic...Go to contribution page
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Christopher Gilbreth16/09/2014, 10:40The auxiliary-field Monte Carlo (AFMC) method is a powerful technique to calculate thermal and ground-state properties of strongly correlated systems. In particular, it has been extensively applied to study the properties of nuclear and atomic systems. We discuss several recent developments and applications of the method to finite-size systems. (i) In finite systems, it is often...Go to contribution page
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Joaquin Drut16/09/2014, 11:20The calculation of the entanglement properties of strongly coupled many-body systems, in particular Renyi and von Neumann entropies, continues to be an active research area with many open questions. In this talk, I will outline the challenges and describe some of the advances, by my group and others, towards the characterization of entanglement in non-relativistic many-fermion systems...Go to contribution page
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16/09/2014, 12:00
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Luis Robledo16/09/2014, 14:30In those branches of physics involving quantum many body systems, mean field states are a good starting point for any theoretical study. One of the advantages of mean field states is the existence of generalized Wick theorems that simplify the evaluation of operator overlaps. Unfortunately, the number of terms to be considered increase with the double factorial of the number of creation...Go to contribution page
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Shiwei Zhang16/09/2014, 15:10I will describe recent progress in developing a general framework for accurate ground-state calculations of interacting electronic systems. This framework is based on the use of auxiliary-fields, and addresses the sign problem (which turns into a phase problem for realistic electron-electron interactions) by constraining the imaginary-time paths with an approximate sign (gauge)...Go to contribution page
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16/09/2014, 15:50
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Wojciech Satula16/09/2014, 16:10Over the last few years we have developed the multi-reference density functional theory (DFT) involving the isospin- and angular-momentum projections of a single Slater determinant. The model, dubbed below static, was specifically designed to treat rigorously the conserved rotational symmetry and, at the same time, tackle the explicit breaking of the isospin symmetry resulting from...Go to contribution page
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16/09/2014, 16:50
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Yasuyuki Suzuki17/09/2014, 10:00Explicitly correlated Gaussian basis is used for solving few-body problems in many fields. The basis functions are easily adaptable and flexible enough to describe complex few-body dynamics. We obtain a unified description of different types of structure and a fair account of correlated motion of interacting particles as well as the tail of the wave function. I present some examples...Go to contribution page
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Mike Guidry17/09/2014, 10:40Superconductivity and superfluidity having generically recognizabl features are observed or suspected across a strikingly broad range of physical systems: traditional BCS superconductors, cuprate high temperature superconductors, iron-based high-temperature superconductors, organic superconductors, heavy-fermion superconductors, and superfluid helium-3 in condensed matter, in many...Go to contribution page
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17/09/2014, 11:20
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Pieter Maris17/09/2014, 11:40The atomic nucleus is a self-bound system of strongly interacting nucleons. In No-Core Configuration Interaction (CI) calculations, the nuclear wavefunction is expanded in a basis of Slater Determinants of single-nucleon wavefunctions (Configurations), and the many-body Schrödinger equation becomes a large sparse matrix problem. The challenge is to reach numerical convergence to within...Go to contribution page
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17/09/2014, 12:20
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17/09/2014, 13:00
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Takahiro Mizusaki17/09/2014, 14:30In my presentation, I will present a new approach to numerically solve shell model calculations and complex scaling calculations, which have real energy eigenvalues and complex energy eigenvalues, respectively. For shell model calculations, I have already published in Ref.1 and this new approach works as well as the well-known Lanczos method. In an application concerning to isospin...Go to contribution page
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Furong Xu17/09/2014, 15:10We start from a realistic nuclear force (N3LO [1] or JISP16 [2]), and use the similarity renormalization group (SRG) to renormalize the realistic nuclear force. With the softened NN force, we first perform the Hartree-Fock (HF) calculation, and then take the HF solution as the reference and basis for further corrections to the solution of the many-body system. The many-body perturbation...Go to contribution page
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17/09/2014, 15:50
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Mihai Horoi17/09/2014, 16:10Neutrinoless double-beta decay, if observed, would signal physics beyond the Standard Model that would be discovered at energies significantly lower than those at which the relevant degrees of freedom can be excited. Therefore, it could be difficult to use the neutrinoless double-beta decay observations to distinguish between several beyond Standard Model competing mechanisms that were...Go to contribution page
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Yu-Min Zhao17/09/2014, 16:50Atomic nuclei are complex systems of protons and neutrons that strongly interact with each other via an attractive and short-range force, leading to a pattern of dominantly monopole and quadrupole correlations between like particles (i.e., proton-proton and neutron-neutron correlations) in low-lying states of atomic nuclei. Among many nucleon pairs, very few nucleon pairs such as proton...Go to contribution page
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Thomas Pappenbrock18/09/2014, 09:00This talk reviews recent results of coupled-cluster calculations for rare isotopes, optimization of interaction from chiral effective field theory, and finite size effects in the oscillator basis.Go to contribution page
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Raymond Bishop18/09/2014, 09:40The coupled cluster method [1] (CCM) is one of the most pervasive, most powerful, and most successful of all ab initio formulations of quantum many-body theory. It has probably been applied to more systems in quantum field theory, quantum chemistry, nuclear, subnuclear, condensed matter and other areas of physics than any other competing method. The CCM has yielded numerical results...Go to contribution page
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18/09/2014, 10:20
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Thomas Duguet18/09/2014, 10:40Ab initio many-body methods have been developed over the past ten years to address closed-shell nuclei up to mass $\text{A}\sim 130$ on the basis of realistic two- and three-nucleon interactions. A current frontier relates to the extension of those many-body methods to the description of open-shell nuclei. Several routes are currently under investigation to do so among which one relies...Go to contribution page
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Nicolae Sandulescu18/09/2014, 11:20The common treatment of proton-neutron pairing in N ≅ Z nuclei relies on Cooper pairs and mean-field BCS-type models. However, the nuclear interaction can induce, through the isospin conservation, quartet correlations of alpha type which might compete with the Cooper pairs. In fact, for any isovector pairing interactions the ground state of N=Z systems is accurately described not by...Go to contribution page
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18/09/2014, 12:00
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18/09/2014, 13:00
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George Bertsch18/09/2014, 15:00Nuclear structure physics has presented a fruitful testing ground for quantum many-body theory since its beginnings half a century ago. On the one hand, the observed phenomena have given rise to models that have been invaluable to interpret the underlying physics. On the other hand, the quest to make a predictive theory has given strong impetus to developing computational tools to solve...Go to contribution page
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Frank Verstraete19/09/2014, 09:00
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Örs Legeza19/09/2014, 09:40Strongly correlated materials are typically rather difficult to treat theoretically. They have a complicated band structure, and it is quite difficult to determine which minimal model correctly describes their essential physical properties. Moreover, the value of the model parameters to be used for a given material is often the subject of debate. Unfortunately, analytic approaches often...Go to contribution page
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19/09/2014, 10:20
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Stijn De Baerdemacker19/09/2014, 10:40Configuration interaction methods for quantum many-body systems are generally represented within Fock space, the space spanned by all possible single-particle Slater determinant (SD) wave functions. For strongly-correlated quantum systems, the number of physically important SD basis states quickly reaches beyond the capacities of present (and future) computer hardware, due to the lack...Go to contribution page
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David Abergel19/09/2014, 11:20We use a numerical application of Thomas-Fermi theory to describe the effects of fluctuations in the local charge density caused by charged impurities in bilayer and double layer graphene. In the bilayer, we show that the interplay between the non-linear screening of the disorder potential and a band gap causes the electron liquid to break into coexisting compressible and incompressible...Go to contribution page
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19/09/2014, 12:00
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19/09/2014, 13:00
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Daniela Pfannkuche19/09/2014, 14:30Dynamical processes set yet another degree of complexity to the many-body problem. With the advent of ultrafast measuring techniques modern experiments often leave the regime of adiabaticity or linear response. The evolution of quantum systems on short time scales subject to strong disturbances then becomes relevant. In this contribution, I will present two different examples that...Go to contribution page
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Mats Wallin19/09/2014, 15:10Monte Carlo simulation of worldlines of quantum particles in a path integral representation is a powerful tool mainly used for studying boson systems. Such approaches have been used to investigate properties of superfluid helium in confined geometries and localization of bosons in a random disorder potential. In particular we are interested in the role of correlations of the disorder...Go to contribution page
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19/09/2014, 15:50
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Yoram Alhassid19/09/2014, 16:10
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20/09/2014, 12:00We take a boat through the many islands in the Stockholm Archipelago. The final destination is the beautiful village of Vaxholm, which is the only town in the inner Stockholm archipelago and therefore known as its capital. Lunch will be served during the trip.Go to contribution page
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Alexander Balatsky, Ramon Wyss22/09/2014, 09:30Alexander Balatsky is one of the four Professors at Nordita. He is in Condensed Matter Physics. --------------------------------------------------------------------- Ramon Wyss is Professor at the Royal Institute of Technology (KTH) and Vice President of International Affairs there.Go to contribution page
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Giancarlo Calvanese-Strinati22/09/2014, 09:45Temperature dependence of the pair coherence and healing lengths for a fermionic superfluid throughout the BCS-BEC crossover The pair correlation function and the order parameter correlation function probe, respectively, the intra-pair and inter-pair correlations of a Fermi gas with attractive inter-particle interaction. Here, these correlation functions are calculated in terms of a...Go to contribution page
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Yoram Alhassid22/09/2014, 14:30Chair: Alexander BalatskyGo to contribution page
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Shan-Gui Zhou23/09/2014, 09:30Multi-Dimensionally Constrained Covariant Density Functional Theories: Formalism and Applications Many different shape degrees of freedom play crucial roles in determining the nuclear ground state and saddle point properties and the fission path. For the study of nuclear potential energy surfaces, it is desirable to have microscopic and self-consistent models in which all...Go to contribution page
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Andrea Idini, Toshio Suzuki23/09/2014, 14:30T. Suzuki Nuclear shell structure, nuclear forces and nuclear weak processes Shell-model study of spin modes in nuclei have been done with new shell-model Hamiltonians which have proper tensor components, and applied to nuclear weak processes at stellar environments. Roles of nuclear forces, especially the tensor and three-body interactions, on nuclear structure and shell evolutions...Go to contribution page
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Gustavo Scuseria24/09/2014, 09:30Unconventional Coupled Cluster Theories for Strong and Weak Correlations Coupled cluster (CC) theory with single and double excitations accurately describes weak electron correlation but is known to fail in cases of strong static correlation. Fascinatingly, however, pair coupled cluster doubles (p-CCD), a simplified version of the theory limited to pair excitations that preserve the...Go to contribution page
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Piotr Piecuch24/09/2014, 14:30SINGLE-REFERENCE COUPLED-CLUSTER METHODS FOR MULTI-REFERENCE MOLECULAR PROBLEMS Piotr Piecuch, Jun Shen, Nicholas P. Bauman, and Jared A. Hansen Accurate modeling of chemical reactions and photochemistry requires a balanced treatment of dynamical and non-dynamical many-electron correlation effects. The popular single-reference coupled-cluster (CC) and equation-of-motion CC (EOMCC)...Go to contribution page
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Paul Ayers25/09/2014, 09:30Chair: Jorge DukelskyGo to contribution page
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Thomas Duguet25/09/2014, 14:30Chair: Gustavo ScuseriaGo to contribution page
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Luis Robledo, Zao-Chun Gao26/09/2014, 09:30Luis Robledo Computational challenges in nuclear EDF calculations. ----------------------------------------------------------------------- Zao-Chun Gao Overlaps and matrix elements of physical operators between arbitrary HFB states. Beyond mean field methods have been widely used in various many-body quantum systems. However, there still are some problems to be solved in the...Go to contribution page
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Kai Neergaard26/09/2014, 14:30In 1936, Bethe and Bacher suggested that when the Coulomb energy is neglected, the masses of nuclei with given mass number A=N+Z, where N and Z are the numbers of neutrons and protons, rise from N=Z approximately quadratically in N-Z. Myers and Swiatecki found in 1966 a marked deviation from this rule; for small |N-Z| the mass rises more rapidly. They called the resulting apparent extra...Go to contribution page
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Vidar Gudmundsson29/09/2014, 09:30Chair: Jonas LarsonGo to contribution page
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Alexander Balatsky29/09/2014, 14:30Odd frequency superconductivity proved to be an elusive state that is yet to be observed as a primary pairing state. On the other hand the list of systems and structures where odd frequency can be present as an induced component is growing. I will review various scenarios pointing to emergence of odd frequency pairing due to modifications of the primary conventional pairing. Recently we...Go to contribution page
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Jonathan Edge29/09/2014, 15:30We study theoretically the collective modes of a two-component Fermi gas with attractive interactions in a quasi-one-dimensional harmonic trap. We focus on an imbalanced gas in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase. Using a mean-field theory, we study the response of the ground state to time-dependent potentials. For potentials with short wavelengths, we find...Go to contribution page
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Doru Sabin Delion, Peter Schuck30/09/2014, 09:30Alpha-decay: a computational challenge D.S. Delion, R.J. Liotta, and A. Dumitrescu The microscopic description of alpha decay widths is an old but still challenging issue. The standard mean field plus residual interaction is not able to reproduce the absolute value of the decay width. We propose two ways to cure this defficiency, namely by introducing a new single...Go to contribution page
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Jouni Suhonen30/09/2014, 14:30
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30/09/2014, 19:30
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Yaron Kedem01/10/2014, 09:30The weak measurement protocol, introduced by Aharonov, Albert and Vaidman 25 years ago, is now in widespread use. They showed that weak coupling of a measurement device to a quantum system, together with a postselection, can yield an intriguing quantity which was named The Weak Value. In some contexts an observable on the system can be replaced by its Weak Value, even though it can be...Go to contribution page
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Gabriel Martinez Pinedo01/10/2014, 14:30
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Jonas Larson02/10/2014, 09:30Chair: Jorge DukelskyGo to contribution page
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Nicola Spaldin02/10/2014, 15:00
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Stanislav Borysov03/10/2014, 09:30
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Jie Meng03/10/2014, 14:30
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Dean Lee06/10/2014, 09:30I discuss recent results obtained using lattice effective field theory to probe nuclear structure. In particular I present recent lattice calculations of the Hoyle state of carbon-12 and whether or not light quark masses must be fine-tuned for the viability of carbon-based life.Go to contribution page
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Hugo Adrian Ortega, Jason Holt06/10/2014, 14:30Jason Holt Nuclear forces and exotic nuclei. Within the context of valence-space Hamiltonians derived from different ab initio many-body methods, I will discuss the importance of 3N forces in understanding and making new discoveries in two of the most exciting regions of the nuclear chart: exotic oxygen and calcium isotopes. Beginning in oxygen, we find that the effects of 3N forces...Go to contribution page
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Jan Dufek07/10/2014, 09:301)Introduction to Monte Carlo simulations of neutron transport in nuclear reactors ---------------------------------------------------------------------- 2) Development of new Monte Carlo methods for reactor physics applicationsGo to contribution page
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Luca Messina07/10/2014, 11:30Solute diffusion in alloys is mostly mediated by defect-driven mechanisms. In irradiated materials, the considerably large point-defect population may enhance or even induce solute diffusion. In particular, in case of a binding solute-defect interaction, kinetic correlation effects may arise and lead to the formation of nanoscopic solute-defect complexes. The latter may be detrimental...Go to contribution page
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Osvaldo Civitarese07/10/2014, 14:30We discuss some of the prescriptions available in the literature about the definition of thermodynamical observables for quantum unstable states. The formalism is based on the use of resonances (states with complex energies) in the path-integral formulation of path integrals and generating functions. The results are confronted mathematical oriented formulations of the problem.Go to contribution page
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Emanuel A. Ydrefors07/10/2014, 15:40Neutrinos from core-collapse supernovae constitute valuable probes of both neutrino properties and of the currently unknown supernova mechanisms. Supernova neutrinos can be detected by using charged-current and/or neutral-current neutrino scatterings off nuclei. Theoretical estimates of the nuclear responses for relevant nuclei are important for the interpretation of future experimental...Go to contribution page
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Alexandre Leprévost, Olivier Juillet08/10/2014, 09:30Olivier Juillet Intertwined orders in strongly correlated electron systems. The quantum phase diagram of the two-dimensional Hubbard model is investigated through the mixing of unrestricted Hartree-Fock and BCS wave-functions with symmetry restoration before variation. The spin, charge, and superconducting orders entailed in such correlated states will be discussed as well as their...Go to contribution page
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Kontantin Zakharchenko08/10/2014, 14:30Nanopores – nanometer-size channels hold significant promise for numerous applications: DNA sequencing, sensing, biosensing and molecular detectors, and catalysis and water desalination. However, these applications require accurate control over the size of the nanopores. Our simulations clearly point to at least two distinct healing mechanisms for graphene sheets: edge attachment (where...Go to contribution page
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Hoshang HEYDARI, Mohamed Bourennane09/10/2014, 09:30Hoshang Heydare Introduction ---------------------------------------------------------------------- Mohamed Bourennane Quantum computingGo to contribution page
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Mikael Fremling09/10/2014, 14:30Using methods based on conformal field theory, we construct model wave functions on a torus with arbitrary flat metric for all chiral states in the abelian quantum Hall hierarchy. These functions have no variational parameters, and they transform under the modular group in the same way as the multicomponent generalizations of the Laughlin wave functions. Assuming the absence of Berry...Go to contribution page
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Hoshang Heydari10/10/2014, 09:30
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Jonas Kjäll10/10/2014, 14:30Many-body localization is closely connected to some fundamental questions of quantum mechanics, like how and why quantum systems thermalize. It can protect quantum order at elevated temperatures and can potentially be important in the development of quantum memories. Many-body localization occurs in isolated quantum systems when Anderson localization persists in the presence of...Go to contribution page
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Feng-Shou Zhang, Zhongzhou RenChair: Osvaldo CivitareseGo to contribution page
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Prof. Takahiro Mizusaki (Institute of Natural Sciences, Senshu University)In my presentation, I will present a new approach to numerically solve shell model calculations and complex scaling calculations, which have real energy eigenvalues and complex energy eigenvalues, respectively. For shell model calculations, I have already published in Ref.1 and this new approach works as well as the well-known Lanczos method. In an application concerning to isospin...Go to contribution page
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Prof. Mike Guidry (University of Tennessee and Oak Ridge National Laboratory)Systems of differential equations containing multiple, widely-separated timescales are termed "stiff". It is commonly believed that specialized implicit methods must be used to solve such systems because stability limits on the timestep size make standard explicit integration impractical. This talk will show that even extremely stiff sets of differential equations may be solved...Go to contribution page
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Yang SunIn performing shell-model calculations for large nuclear systems, the central issue is how to truncate the shell-model space efficiently. It corresponds to a proper arrangement of the configuration space to separate the most important part from the rest of the space. There are different schemes for the shell-model truncation. Considering the fact that most nuclei in the nuclear...Go to contribution page
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Yang SUNIn performing shell-model calculations for large nuclear systems, the central issue is how to truncate the shell-model space efficiently. It corresponds to a proper arrangement of the configuration space to separate the most important part from the rest of the space. There are different schemes for the shell-model truncation. Considering the fact that most nuclei in the nuclear...Go to contribution page
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Dr Marcella Grasso (IPN Orsay)Mean-field approaches successfully reproduce nuclear bulk properties like masses and radii within the Energy Density Functional (EDF) framework. However, complex correlations are missing in mean-field theories and several observables cannot be predicted accurately. The necessity to provide a precise description of the available data as well as reliable predictions for exotic nuclei...Go to contribution page
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Yasuyuki SuzukiExplicitly correlated Gaussian basis is used for solving few-body problems in many fields. The basis functions are easily adaptable and flexible enough to describe complex few-body dynamics. We obtain a unified description of different types of structure and a fair account of correlated motion of interacting particles as well as the tail of the wave function. I present some examples...Go to contribution page
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Prof. Doru S. Delion (Horia Hulubei National Institute of Physics and Nuclear Engineering, POB MG-6, Bucharest, Romania)Nuclear structure is better understood in terms of interacting building blocks. As the first example we discuss the coupled channel Quasiparticle Random Phase Approximation (ccQRPA) for even-even deformed nuclei [1]. The basic building blocks are particle states coupled with the Wigner function to a given total spin. In this way, we are able to describe collective excitations in deformed...Go to contribution page
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Mr Alexandre Leprévost (Laboratoire de Physique Corpusculaire de Caen - Université de Caen)The four site Hubbard model is considered from the exact diagonalization and variational method points of view. We show that a symmetry projected mean-field theory recovers the exact ground state energy, irrespective of the interaction strength, in contrast to the conventional Gutzwiller wave-function that will be also considered.Go to contribution page
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Prof. Gerardo Ortiz (Department of Physics, Indiana University, Bloomington)In this talk I present a theoretical framework and a computational method to study the coexistence and competition of thermodynamic phases, and excitations, in strongly correlated quantum Hamiltonian systems. The general framework is known as Hierarchical Mean-Field Theory (HMFT), and its essence revolves around the concept of the relevant elementary degree of freedom (EDOF), e.g., a...Go to contribution page
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Gerardo OrtizIn this talk I present a theoretical framework and a computational method to study the coexistence and competition of thermodynamic phases, and excitations, in strongly correlated quantum Hamiltonian systems. The general framework is known as Hierarchical Mean-Field Theory (HMFT), and its essence revolves around the concept of the relevant elementary degree of freedom (EDOF), e.g., a...Go to contribution page
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Annica Black-SchafferI will present results on using a lattice tight-binding Bogoliubov-de Gennes formulation of nonuniform superconducting systems and solving self-consistently for the superconducting order parameter. Systems studied include Josephson junctions in graphene and spin-orbit coupled semiconductors, superconducting vortices in spin-orbit coupled semiconductors, and studies of the local effect...Go to contribution page
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Annica BLACK-SCHAFFERI will present results on using a lattice tight-binding Bogoliubov-de Gennes formulation of nonuniform superconducting systems and solving self-consistently for the superconducting order parameter. Systems studied include Josephson junctions in graphene and spin-orbit coupled semiconductors, superconducting vortices in spin-orbit coupled semiconductors, and studies of the local effect...Go to contribution page
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Annica BLACK-SCHAFFERI will present results on using a lattice tight-binding Bogoliubov-de Gennes formulation of nonuniform superconducting systems and solving self-consistently for the superconducting order parameter. Systems studied include Josephson junctions in graphene and spin-orbit coupled semiconductors, superconducting vortices in spin-orbit coupled semiconductors, and studies of the local effect...Go to contribution page
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Dr Nicolas Michel (GANIL)Nuclei at drip-lines bear unique properties such as halos or resonant character at ground state level, inexistent in the valley of stability. While the latter consists of standard closed quantum systems, drip-line nuclei are open quantum systems, so that models describing their properties must include both nuclear inter-correlations and continuum degrees of freedom. Coupled Cluster and...Go to contribution page
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Mihai HoroiNeutrinoless double-beta decay, if observed, would signal physics beyond the Standard Model that would be discovered at energies significantly lower than those at which the relevant degrees of freedom can be excited. Therefore, it could be difficult to use the neutrinoless double-beta decay observations to distinguish between several beyond Standard Model competing mechanisms that were...Go to contribution page
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Neutrinoless double-beta decay, if observed, would signal physics beyond the Standard Model that would be discovered at energies significantly lower than those at which the relevant degrees of freedom can be excited. Therefore, it could be difficult to use the neutrinoless double-beta decay observations to distinguish between several beyond Standard Model competing mechanisms that were...Go to contribution page
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Prof. Paul Ayers (Dept. of Chemistry & Chemical Biology; McMaster University)Modeling strong correlation is so difficult that theorists often settle for qualitative descriptions of strongly-correlated substances (e.g. heavy-fermion materials, high- temperature superconductors). These qualitative approaches are typically based on model Hamiltonians for which the Schrödinger equation can be solved exactly via the Bethe ansatz. We recently realized that one can use...Go to contribution page
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Dr Constantine Yannouleas (School of Physics, Georgia Institute of Technology)The physics of condensed-matter nanosystems exhibits remarkable analogies with atomic nuclei. Examples are: Plasmons corresponding to Giant resonances [1], electronic shells, de- formed shapes, and fission [2], beta-type decay, strongly correlated phenomena associated with symmetry breaking and symmetry restoration [3], etc. Most recently, analogies with relativistic quantum-field...Go to contribution page
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Constantine YannouleasThe physics of condensed-matter nanosystems exhibits remarkable analogies with atomic nuclei. Examples are: Plasmons corresponding to Giant resonances [1], electronic shells, de- formed shapes, and fission [2], beta-type decay, strongly correlated phenomena associated with symmetry breaking and symmetry restoration [3], etc. Most recently, analogies with relativistic quantum-field...Go to contribution page
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Prof. Zhongzhou REN (Nanjing University)One of fundamental properties of a nucleus is its radius [1,2]. Experimental information on nuclear charge radii can be obtained by different sources such as electron scattering, muonic atom spectra, isotope shifts, and so on [2,3]. These methods are successful for the nuclei near the beta-stability line. However, it is difficult for them to obtain charge radii of exotic nuclei...Go to contribution page
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Dr Jason Holt (TRIUMF)Within the context of valence-space Hamiltonians derived from different ab initio many-body methods, I will discuss the importance of 3N forces in understanding and making new discoveries in two of the most exciting regions of the nuclear chart: exotic oxygen and calcium isotopes. Beginning in oxygen, we find that the effects of 3N forces are decisive in explaining why 24O is the last...Go to contribution page
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George Bertsch, George Bertsch (Colloquium)
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George Bertsch
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Constantine YannouleasThe physics of condensed-matter nanosystems exhibits remarkable analogies with atomic nuclei. Examples are: Plasmons corresponding to Giant resonances [1], electronic shells, de- formed shapes, and fission [2], beta-type decay, strongly correlated phenomena associated with symmetry breaking and symmetry restoration [3], etc. Most recently, analogies with relativistic quantum-field...Go to contribution page
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Will be performed by Elizabeth Yang at her Office, Nordita main building, number 23.Go to contribution page
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Prof. Feng-Shou ZHANG (College of Nuclear Science and Technology, Beijing Normal University)Constraining the neutron-proton effective mass splitting is important for extracting the momentum dependencies of the symmetry energy. Within the Boltzmann-Langevin transport model, in which the isospin and momentum- dependent potential is incorporated, we investigate the neutron-proton effective mass splitting in central 112;124;132Sn + 112;124;132Sn collisions at 50 MeV/u. It is...Go to contribution page
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Prof. Mike Guidry (University of Tennessee and Oak Ridge National Laboratory)Superconductivity and superfluidity having generically recognizable features are observed or suspected across a strikingly broad range of physical systems: traditional BCS superconductors, cuprate high-temperature superconductors, iron-based high-temperature superconductors, organic superconductors, heavy-fermion superconductors, and superfluid helium-3 in condensed matter, in many...Go to contribution page
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Prof. Giancarlo Calvanese Strinati (University of Camerino)The pair correlation function and the order parameter correlation function probe, respectively, the intra-pair and inter-pair correlations of a Fermi gas with attractive inter-particle interaction. Here, these correlation functions are calculated in terms of a diagrammatic approach, as a function of coupling throughout the BCS-BEC crossover and of temperature, both in the superfluid and...Go to contribution page
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Aurel Bulgac (Seattle, Washington University)The fascinating dynamics of superfluids, often referred to as quantum coherence revealed at macroscopic scale, has challenged both experimentalists and theorists for more than a century now, starting with electron superconductivity discovered in 1911 by Heike Kamerlingh Onnes. The phenomenological two-fluid model of Tizsa and its final formulation due to Landau, is ultimately a...Go to contribution page
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Prof. Gustavo Scuseria (Department of Chemistry Department of Physics and Astronomy Department of Materials Science and NanoEngineering Rice University)Coupled cluster (CC) theory with single and double excitations accurately describes weak electron correlation but is known to fail in cases of strong static correlation. Fascinatingly, however, pair coupled cluster doubles (p-CCD), a simplified version of the theory limited to pair excitations that preserve the seniority of the reference determinant (i.e., the number of unpaired...Go to contribution page
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