-
Klaus Kiendlhofer (Infineon Technologies Austria AG)Atomic ClocksPoster
K. Kiendlhofer1,2,3, M. Glantschnig1,2,3, M. Klammer1,4, M. Kromrey2,3, A. Woyke1,5, S. Aucther1, Y. Colombe1, A. Kulosa2, T. Mehlstäubler2,3,6, C. Rössler1
1 Infineon Technologies Austria AG, Villach, Austria
Go to contribution page
2 Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
3 Institute for Quantum Optics, Leibniz University of Hannover, Hannover, Germany
4 Institute for Applied Physics, TU... -
William Cutler (University of Oxford)Quantum Information & ComputingPoster
Quantum thermodynamics has recently emerged as a rich field of both fundamental interest and practical utility [1]. Exactly how classical thermodynamics and irreversibility emerge at large scales from unitary quantum mechanics is the subject of current research. At the microscopic level, coherent interactions can be harnessed to build devices such as quantum heat engines or refrigerators that...
Go to contribution page -
Kamal Abdellatif (Max-Planck-Institute for Nuclear Physics)Precision SpectroscopyPoster
Radio-frequency ion traps have enabled unprecedented advancements in high-precision spectroscopy. In recent years, this progress was extended to highly charged ions (HCIs).
HCIs feature an increased sensitivity to QED and relativistic effects while also being less susceptible to external fluctuations, which makes them excellent candidates for testing fundamental physics.To perform...
Go to contribution page -
Nadezhda Markova (Center for Quantum Technologies, Faculty of Physics, Sofia University)Quantum Information & ComputingPoster
This work investigates a two-ion system based on $^{171}\text{Yb}^+$ ions confined in a microwave (MW) Paul trap at the University of Siegen. The system employs MW-driven control in combination with magnetic gradient-induced coupling (MAGIC). Two continuous microwave fields are applied to the ions, with discrete phase jumps implemented according to a URDD-modulation sequence [1], forming the...
Go to contribution page -
James Urquhart (University of Sussex)Quantum TechnologiesPoster
One approach for developing a quantum computer is a controllable array of electrodes (QCCD) on a microchip, capable of transporting trapped ions between different zones. To make the array 2-dimensional, junctions between linear zones need to be integrated, additionally allowing all-to-all connectivity. It is important for transport operations to be diabatic (fast and with low motional...
Go to contribution page -
Mr Matthew Casey (University of Oxford)Quantum Information & ComputingPoster
Progress in trapped-ion quantum computers depends on developing scalable, high-fidelity control of trapped-ion qubits. Laser-based systems have demonstrated high-fidelity, all-to-all connectivity at small scales [1]. However, the practicality of scaling complex, high-precision laser systems remains uncertain. An alternative approach for manipulating hyperfine qubits is to drive transitions...
Go to contribution page -
Arjun RaoQuantum TechnologiesPoster
Ion trap quantum processors have achieved the highest single and two-qubit gates [1,2], but due to constraints on optical access, electrode routing and motional mode crowding, scaling to larger qubit registers within a single device remains limited [3]. A modular architecture, in which multiple traps operate as independent nodes connected via photonic interconnects, offers a path to scalar...
Go to contribution page -
Finnlay ODwyer (Ion Quantum Technology Group, University of Sussex)Quantum Information & ComputingPoster
Scalable quantum computing architectures require the ability to individually address qubits, maintain long coherence times relative to gate times, and support arbitrary qubit connectivity. We are developing a quantum processor architecture based on modular ion traps and physical ion shuttling, this allows for maximum connectivity, as well as zones dedicated for loading, coherent operations and...
Go to contribution page -
Sacha Guesne (Laboratoire Matériaux et Phénomènes Quantiques - Université Paris Cité, Crystal Quantum Computing SAS)Quantum TechnologiesPoster
Trapped atomic ions are among the most advanced technologies for realizing quantum computation and quantum simulation, based on a combination of high-fidelity quantum gates and long coherence times[1]. Most two-qubit quantum gates for trapped ions are based on collective vibrational modes (phonons), such as the Mølmer–Sørensen gate[2]. While these gates have demonstrated high two-qubit gate...
Go to contribution page -
Giorgio Canalella (University of Oxford)Quantum TechnologiesPoster
Trapped ions have proven to be a formidable platform for quantum computation, with record-high fidelities in state preparation and measurement, single- and two-qubit gates. However, scaling the number of qubits remains a key challenge, requiring either larger traps or distributed architectures. An alternative paradigm is to exploit the inherently hybrid nature of trapped-ion systems,...
Go to contribution page -
David Verran (University of Oxford)Quantum Information & ComputingPoster
Entangling operations on trapped-ion processors are typically mediated by the motional states of a linear string of ions. This is achieved by coupling the electronic qubit subspace of ions with the bosonic phonon subspace of quantised normal mode oscillations of the entire ion string. Typically, the common mode, defined by all ions participating equally and oscillating in phase, is used. This...
Go to contribution page -
Benjamin RevieQuantum Information & ComputingPoster
Trapped ions can provide a platform for high fidelity quantum computing, as well as for other areas such as optical clocks and quantum metrology. Recent progress made at the National Physical Laboratory on two ion entanglement in a microfabricated linear segmented trap will be presented. In addition, work on the dynamic control of axial potentials for shuttling, splitting and combining 88Sr+...
Go to contribution page -
He Zhang (Imperial College London)Quantum TechnologiesPoster
The QCD axion is a compelling dark matter candidate [1][2]. The Quantum Enhanced Particle Astrophysics (QuEPA) experiment at Imperial searches for axions with masses between 124 μeV and 248 μeV [3]. The experiment consists of two parts: a Fabry–Pérot cavity, which converts axions into microwave photons, and a cryogenic Penning trap single-photon counter for detecting axion-induced microwave...
Go to contribution page -
Mathew Dave Chan (University of Siegen, eleQtron)Quantum Information & ComputingPoster
In recent years, trapped ions have emerged as a prime candidate for the establishment of noisy intermediate-scale quantum (NISQ) computers. We utilize 171Yb+ ions interacting via MAGIC (MAgnetic Gradient Induced Coupling), where MAGIC [1] refers to the deployment of a static magnetic field gradient along the ion chain. This gradient results in a differentiation between the qubit transition...
Go to contribution page -
Finn Köhler (Institut für Kernphysik TU Darmstadt)Nuclear PhysicsPoster
For collinear laser spectroscopy experiments, radio-frequency-based beam cooler-bunchers (RFQCB) are particularly used to prepare ion beams with kinetic energies of several 10 kV. They can accumulate rare beams for up to several seconds, cool them through collisions with a buffer gas, and emit ion bunches with a short time and energy width. This contribution will report on the development of a...
Go to contribution page -
Ms Tomomi Higashi (Grad. Sch. Eng. Sci. UOsaka)Quantum TechnologiesPoster
Ion-trap-based quantum computers have attracted significant attention as a promising platform because ions used as qubits exhibit long coherence times and low error rates. For scaling up these systems, it is important to maintain a uniform qubit environment. Considering the dependence of energy levels on external magnetic fields, both the uniformity and stability of the magnetic field are key...
Go to contribution page -
Kevin Rempel (Leibniz Universität Hannover)Quantum TechnologiesPoster
In the context of a universal quantum processor, trapped ions are a promising physical platform, uniting desirable properties like all-to-all interconnectivity of qubits, long coherence times, and high gate fidelities.
Go to contribution page
We will report on the electrical design work for a microfabricated X-junction surface trap which allows the control of up to 16 $^9$Be$^+$ hyperfine qubits. It features... -
Matthew Aylett (University of Sussex), Mr Mohamed Saleh (University of Sussex), Sameer yadav (University of Sussex)Quantum TechnologiesPoster
Fabrication of advanced ion traps with inner-segmented electrodes and integrated microwave antennas
M. Aylett, M. Siegele, S. Yadav, M. Saleh, W.K HensingerA key requirement for scalable trapped-ion quantum computing architectures, such as that proposed by Lekitsch et al. [1], is the development of ion traps incorporating inner DC electrodes. These electrodes enable higher secular...
Go to contribution page -
Victoria Schwab (Infineon Technologies / University of Innsbruck)Quantum TechnologiesPoster
Trapped ions are a leading hardware platform for quantum computing, but scaling to a large number of qubits remains a significant challenge [1]. To overcome this, it is essential to mitigate heating effects and integrate photonic elements directly into the trap for reliable light delivery. While semiconductor substrates, such as silicon, are commonly used for surface ion trap fabrication due...
Go to contribution page -
Mr Philipp Luca Hoffmann (Institute for Quantum Optics, Leibniz University Hanover)AntimatterPoster
In our cryogenic multi-Penning trap experiment, we focus on testing CPT symmetry [1] by performing high-precision measurements of the $g$-factor of protons [2] and antiprotons [3]. We aim to reach precision beyond the parts-per-billion level, by using quantum logic spectroscopy [4,5] that employs a single, laser-cooled $^{9}$Be$^{+}$ ion. With that ion sympathetic cooling and spin-state...
Go to contribution page -
Emily Hirsch (The University of Oxford)Quantum Information & ComputingPoster
The trapped ion platform has demonstrated among the highest reported two-qubit gate fidelities and coherence times, and constitutes a promising platform for quantum computing. A longstanding limitation of the trapped-ion platform, however, is the duration of two-qubit gates. Previous work has demonstrated two-qubit gate durations below the motional period ($\lesssim$1 $\mu s$) for...
Go to contribution page -
CARLOS SAGASETA (Universidad Carlos III de Madrid)Quantum Information & ComputingPoster
Excitation of trapped-ion hyperfine qubits with fast optical Raman pulses enables faster-than-trap-period entangling gates with qubits of long coherence time for practical quantum computation. Achieving high-fidelity fast two-qubit gates requires high-quality spin-dependent kicks (SDKs), which form their fundamental building blocks for spin–motion coupling: a spin flip is accompanied by a...
Go to contribution page -
Joshua Weißenfels (Theoretische Physik, Universität des Saarlandes, D-66123 Saarbrücken, Germany)Quantum SimulationPoster
Trapped ions in a periodic potential are a paradigm of a frustrated Wigner crystal. The dynamics are captured by a long-range Frenkel-Kontorova model. We show that the classical ground state can be mapped to the one of a long-range Ising spin chain in a magnetic field, whose strength is determined by the mismatch between the chain’s and substrate lattice’s periodicity. The mapping is exact...
Go to contribution page -
Joanna Peszka (GSI Helmholtz Centre for Heavy Ion Research)Precision SpectroscopyPoster
Highly Charged Ions (HCI), ionised atoms with one or few deeply-bounded electrons, are interesting systems for testing of fundamental physics due to the extreme electromagnetic field experienced by electrons in the proximity of nucleus. Strong-field QED effects of the quantum vacuum on the atomic structure, nuclear size effects, binding energies and fine structure, all scale up with increasing...
Go to contribution page -
Ruben Henninger (Max-Planck-Institute for nuclear physics)Precision SpectroscopyPoster
Precise control over the motional states is a cornerstone of modern trapped-ion experiments, where reaching the motional ground state is essential for high-fidelity quantum gates or the suppression of systematic shifts in precision metrology. In particular, the preparation of ions in the motional ground state of mixed-species ion crystals is a prerequisite for quantum logic spectroscopy (QLS)....
Go to contribution page -
Parsa Rahimi (Ion Quantum Technology Group University of Sussex)Quantum Information & ComputingPoster
Title: High-Fidelity Electronic $\sigma_z\sigma_z$ Gate on an Axial Mode via Near-Motional Oscillating Magnetic Field Gradients
Laser-free entangling gates using magnetic field gradients offer a promising pathway toward scalable trapped-ion quantum information processing. Here, we report the first experimental demonstration of a $\sigma_z\sigma_z$ gate implemented on an axial motional mode...
Go to contribution page -
Julius Franke (Max-Planck-Institut für Kernphysik)Precision SpectroscopyPoster
High-precision Q value determination of the $^7\text{Be}$ decay through Penning-trap mass measurements
Julius Franke, Sergey Eliseev, Christoph Schweiger, Pavel Filianin, Jan Nägele, Finn Mehlhorn, Nils Bock, Burcu Cakirli and Klaus Blaum for the PENTATRAP experiment - Max Planck Institute for Nuclear Physics,...
Go to contribution page -
Felix W. Knollmann (MIT)Quantum Information & ComputingPoster
There are three key metrics for a remote entanglement link: rate, fidelity, and scalability. All current demonstrations of remote entanglement fail to meet the requirements of large-scale fault-tolerant computing on all three metrics. In contrast, demonstrations of local operations do hit operational requirements. If we assume that at some size a trapped ion quantum computer will outgrow the...
Go to contribution page -
Tomoka ImamuraAntimatterPoster
The BASE experiment at CERN investigates the fundamental properties of protons and antiprotons to perform tests of the fundamental charge (C), parity (P), and time (T) reversal invariance in the baryon sector. With its cryogenic multi-Penning-trap system, the magnetic moment of the antiproton has been measured with a fractional precision of 1.5 ppb [1]. Our current statistical measurement...
Go to contribution page -
Erin Malinowski (University of Oxford)Quantum TechnologiesPoster
Trapped atomic ions present an ideal platform for quantum computing due
Go to contribution page
to their long coherence times, precise control, and inherent qubit connectivity.These systems have already demonstrated the functionality of small, fully controllable universal quantum computers. However, scaling remains a significant challenge. As the number of qubits increases, control becomes more difficult due to... -
Kilian Teck (ETH Zurich)Quantum TechnologiesPoster
Penning micro-traps offer a promising scalable architecture for trapped-ion quantum computation. Individually confined low-mass $^{9}\mathrm{Be}^{+}$ ions in a homogeneous magnetic field enable strong spin-motion coupling and potentially faster entangling gates compared to heavier species such as $\mathrm{Ca}^{+}$, while reducing laser overhead due to a simpler level structure.
Go to contribution page
Integrated... -
Phillip Cloud (University of Cambridge)Quantum TechnologiesPoster
Optical control of quantum matter – from trapped atoms and ions to quantum dots and defects, is foundational for quantum information science and technology. Development of integrated photonics opens the possibility for realization of scalable circuits with complex functionalities, advancing both science and technology frontiers and enabling real-world applications in quantum sensing and...
Go to contribution page -
Mr Siddhartha Sankar Payra (Indian Institute of Technology Madras)Molecular SpectroscopyPoster
Nitrogen-bearing polycyclic aromatic hydrocarbons (N-PAHs) are key precursors to complex organic molecules in both the interstellar medium and nitrogen-rich planetary atmospheres. Despite the recent detections of nitrogen functionalized astromolecules [1], their formation pathways remain an open question. The discrepancies between their predicted and observed abundances point to unknown...
Go to contribution page -
Mr Rares Barcan (Universal Quantum, Ion Quantum Technology Group University of Sussex)Quantum TechnologiesPoster
The performance of trapped-ion quantum processors is fundamentally limited by noise arising from both control electronics and the trapping environment. While experimental techniques such as Ramsey and Hahn-echo sequences provide important information about noise spectra, translating these measurements into quantitative predictions of errors in trapped-ion quantum operations for a specific ion...
Go to contribution page -
Daisy Smith (National Quantum Computing Center)Quantum TechnologiesPoster
We present two software tools developed at the NQCC to streamline common tasks in trapped‑ion research and reduce duplicated effort across the community. The first, IonVision, is an open‑source framework for generating both energy‑level diagrams and pulse‑sequence diagrams from concise and easily configurable JSON specifications. IonVision is designed as a structured alternative to...
Go to contribution page -
Hon-Kwan Chan (The University of Sydney)Quantum Information & ComputingPoster
Controlling magnetic (Zeeman) sublevels in large-spin atomic hyperfine manifolds enables their use as high-dimensional qudits for quantum information processing. SU(d) control of Zeeman qudits have been demonstrated using radiofrequency (RF)-driven optimal SU(2) rotations. However, RF-based controls are difficult to implement on systems with small Zeeman splittings, and individual addressing...
Go to contribution page -
Alika Ho (The University Of Oxford), Jakob Helms (The University of Oxford)Quantum Information & ComputingPoster
Cavity-assisted photon-mediated protocols are a promising approach for generating remote entanglement between trapped-ion nodes, a key requirement for scalable quantum networks. Time-bin encoding offers robustness against polarisation drift and fibre-induced decoherence [1], while optical cavities enhance photon extraction via the Purcell effect, addressing a major bottleneck in heralded...
Go to contribution page -
Nora Daria Stahr (Institut für Quantenoptik, Leibniz Universität Hannover)Quantum TechnologiesPoster
Scalable surface-electrode ion traps require advanced microfabrication techniques capable of
Go to contribution page
integrating different trap architectures as well as integrated electric and photonic circuits with
high reliability. Microfabricated surface-electrode ion traps provide a promising platform for
quantum information processing, but their fabrication remains challenging in terms of
integration density... -
Abdul-Rahman Rasul (eleQtron GmbH)Quantum Information & ComputingPoster
For scalable quantum computing based on surface ion-traps high fidelity shuttling is vital for cross register entanglement. A prerequisite for this is qubits with coherence times greater than the shuttling protocol time.
In our architecture we use as computational qubits a microwave driven hyperfine ground state magnetic field sensitive transition of 𝑌𝑏171+, in a linear Paul trap, placed...
Go to contribution page -
Rico Holz (TU Darmstadt)AntimatterPoster
The antiProton Unstable Matter Annihilation (PUMA) experiment at CERN studies the distribution of protons and neutrons in the nuclear density tail using low-energy antiprotons. By studying stable and short-lived nuclei, PUMA investigates surface phenomena such as nuclear halos and neutron skins. The experiment leverages the sensitivity of antiprotons to both neutrons and protons, with the...
Go to contribution page -
Gauthier Guignard (LP2iB)Nuclear PhysicsPoster
Of the approximately 7,000 nuclei predicted by nuclear models, fewer than half have had their mass measured experimentally. Many of the remaining nuclei are highly unstable and difficult to produce. Precise mass measurements play a crucial role in nuclear structure studies and nucleosynthesis modelling, and require advanced instrumentation to reach the most exotic isotopes.
At the DESIR...
Go to contribution page -
Dr Larisa Thorne (Johannes Gutenberg University Mainz)Quantum SimulationPoster
Current state-of-the-art quantum simulators are limited by their short observation times. The OPEN-2QS platform leverages the advantages of Rydberg ions [1] with those of Penning trap configurations [2] to allow significantly longer observation times, up to 7 orders of magnitude longer than microscopic timescales [3]. The Rydberg interaction boosts the effective interaction strength between...
Go to contribution page -
Isaline Emilie Duperon (Stockholm University)Quantum TechnologiesPoster
For optical qubit encoding, laser phase noise limits the coherence time for qubit manipulations.
Go to contribution page
In this thesis, we address this challenge by replicating a low-phase-noise laser system for qubit manipulation of trapped ions in a cryogenic environment. Using injection locking technology, we inject a laser diode with another laser, ensuring the replicated light retains the same spectral... -
Constantijin Karels (University of Strasbourg)Molecular SpectroscopyPoster
Molecules have rich energy level structures with transitions ranging from the kHz to PHz range, some of which exhibiting excellent coherence properties. Molecules are therefore promising for quantum information processing, as well as precision measurements, e.g. realizing quantum sensors and novel clocks, in particular for testing fundamental physics.
Go to contribution page
However, the lack of cycling transitions... -
Tim Wohlers-Reichel (University of Oxford)Quantum Information & ComputingPoster
We characterise an efficient optically-heated neutral atom source for ion trapping. We observe loading rates of up to 24(3) ions per second with heating powers below 85 mW, and demonstrate loading of a single ion in under 30 s with 41.4(4) mW of optical power in a room-temperature ion trap system with an ionisation probability of 1.50(5)$\times 10^{-5}$.
Go to contribution page
We calibrate a thermal model for... -
ALAN KAHAN (Instituto de Física Teórica UAM-CSIC)Quantum SimulationPoster
We propose and analyze a trapped-ion quantum simulator of the Jackiw–Rebbi model, a paradigmatic quantum field theory in (1+1) dimensions where solitonic excitations of a scalar field can bind fermionic zero modes leading to fractionally-charged excitations. In our approach, the scalar field is a coarse-grained description of the planar zigzag ion displacements in the vicinity of a structural...
Go to contribution page -
Thomas Clarke (Sussex Centre for Quantum Technologies)Quantum Information & ComputingPoster
Roadmaps for next-generation trapped ion quantum computers are built on distributed architectures, where qubits are shuttled between different zones for loading, gates and readout. When the ion is shuttled, changes in the magnetic field environment can lead to the spin on the ion accumulating a phase dependent on the transport path and duration. As the number of qubits on commercially...
Go to contribution page -
Simon Euchner (University of Tübingen)Quantum SimulationPoster
Trapped ions excited to high-lying electronic states, so-called Rydberg ions, combine strongly coupled collective vibrational and electronic degrees of freedom with long-range interparticle interactions. These ingredients enable the quantum simulation of biochemical processes associated with the dynamics of excitons in non-perturbative parameter regimes. The key features of this quantum...
Go to contribution page -
Mr Mohammad Masum Billah (Institut für Quantenoptik, Leibniz Universität Hannover ; Laboratorium für Nano und Quantenengineering, Leibniz Universität Hannover)Quantum TechnologiesPoster
In order to perform meaningful computations using the trapped-ion quantum processor, one of the most promising approaches is to utilize a micro-fabricated scalable Quantum Charged Coupled Device (QCCD) architecture [1]. However, reliance on free-space lasers hinders efficient scaling. In our research group, the implementation of microwave near-field gate operations have been demonstrated to be...
Go to contribution page -
Magdalena Winkelvoß (Max-Planck-Institute for nuclear physics)Precision SpectroscopyPoster
Several theories beyond the standard model predict variation of physical constants, for example the fine-structure constant α. Highly charged ions (HCIs) are ideal candidates to search for these variations because their electronic transitions show low sensitivity to external perturbations while simultaneously showing strong relativistic effects making them highly sensitive to α. The TwinTraps...
Go to contribution page -
Molly Smith (University of Oxford)Quantum Information & ComputingPoster
In trapped-ion quantum computing, quantum logic gates are most commonly performed using lasers. Alternatively, gates can be performed electronically, for which the technology offers attractive features for scalability: robustness, cost and size, straightforward amplitude and phase control, and simple integration of waveguides onto surface traps. Additionally, electronically-controlled...
Go to contribution page -
Janina Bätge (Leibniz Universität Hannover)Quantum TechnologiesPoster
Surface-electrode ion traps are a promising platform for scalable
Go to contribution page
quantum computers. In the Quantum CCD architecture, transport
of ions between registers allows to limit the number of ions that has
to be kept in a single potential well at any given time and to im-
plement specialized registers for storage, cooling, detection and gate
operations. Here we present the design of a... -
Deviprasath Palani (NIST, Boulder)Quantum Information & ComputingPoster
We report progress on quantum logic implemented using microwave and radiofrequency
Go to contribution page
magnetic fields together with magnetic field gradients in a mixed-species trapped-ion
system. This approach avoids direct optical interactions on the data ion, thereby
mitigating spontaneous-emission-induced errors and surface charging associated with
short-wavelength laser light, and offers a path toward... -
Laura Blackburn (University of Sussex)Molecular SpectroscopyPoster
Many beyond-the-Standard Model theories predict that the fundamental constants may change in time and space. Potential changes in one of those constants, the proton-to-electron mass ratio μ, can be detected by comparing vibrational or rotational transitions in molecules to optical transitions in atoms. In our experiment, a vibrational transition in N$_2^+$ will be compared to atomic clocks...
Go to contribution page -
Gareth Hopkins (University of Sussex)Quantum Information & ComputingPoster
Multi-species trapped-ion quantum computing provides a promising route to overcoming challenges associated with motional heating and competing operational requirements in quantum devices. We present progress towards the implementation of sympathetic cooling within a mixed-species platform using ytterbium and barium ions in a microwave-driven trapped-ion architecture.
Go to contribution page
Our group uses ytterbium... -
Max Glantschnig (Infineon Technologies Austria AG)Atomic ClocksPoster
Optical atomic clocks with $10^{-18}$ fractional frequency uncertainty enable a broad range of applications, including precise tests of fundamental physics and relativistic geodesy. In the past years, several studies have reached this level of uncertainty [1-3]. In the cited experiments, a single ion in an RF Paul trap was used for frequency stabilization. Owing to the low signal-to-noise...
Go to contribution page -
Toby Maddock (University of Sussex)Quantum Information & ComputingPoster
Towards entanglement distribution between two surface ion trap quantum computing chips
Go to contribution page
T. Maddock, M. S. Brown, S. Weidt, W. K. Hensinger
The ability to generate and distribute entanglement in engineered quantum systems is a prerequisite for a fully-fledged quantum computer [1]. Our group has demonstrated rapid distribution of quantum information using a transport-baed approach between two... -
David Christoph StuhrmannQuantum Information & ComputingPoster
Surface electrode ion traps are one of the most promising platforms in the context of scalable quantum computing hardware. With high-fidelity qubits, long coherence times and all-to-all connectivity the elementary requirements are fulfilled. The ongoing challenge lies in scaling up the systems in terms of the number of trapped ions and controlled qubits, a process which necessitates...
Go to contribution page -
Julie Hernandez (University of Oxford)Molecular SpectroscopyPoster
Trapped atomic ions offer long lifetimes and high-fidelity operations [1]. However, their relatively simple internal structure can pose a limitation for scalability. In contrast, diatomic molecules possess a rich internal structure of rotations, vibrations and hyperfine levels, allowing each molecule to store more information than a single atomic ion [2]. Furthermore, the permanent electric...
Go to contribution page -
Mikhail Popov (University of Basel)Molecular SpectroscopyPoster
Molecular ions can be utilized to probe fundamental theories [1] as well as for cold chemical reactions and collision studies. Unlike their atomic counterparts, molecules lack cycling optical transitions, which, along with the overall complexity of their internal energy level structure, significantly complicate cooling and internal state control. These challenges were successfully solved for a...
Go to contribution page -
Valentin Martimort (Laboratoire Matériaux et Phénomènes Quantiques - Université Paris Cité)Precision SpectroscopyPoster
The GBAR collaboration (Gravitational Behaviour of Antihydrogen at Rest) at CERN [1] aims to test the equivalence principle with antimatter by measuring the gravitational acceleration experienced by antihydrogen $\overline{\textrm{H}}$ prepared at rest. This experiment involves the use of laser-cooled $^9\textrm{Be}^+$ ions and a sympathetically cooled $\overline{\textrm{H}}^+$ ion.
The...
Go to contribution page -
Lilay GROS-DESORMEAUX (MPQ Université Paris Cité)Quantum TechnologiesPoster
Laser-cooled trapped ions platform is one of the best candidates for the development of future quantum computing. This has generated a major worldwide research effort aimed at scaling and integrating trapping devices. As part of this effort, we are developing miniature atomic ion traps in the laboratory: Paul linear surface traps manufactured in collaboration with Nanyang Technology University...
Go to contribution page -
Mr Benjamin Zenz (German)Quantum TechnologiesPoster
Trapped ions constitute an exceptionally well-controlled quantum system, featuring truly identical particles confined in deep potentials and manipulated with high precision. Each ion acts as a deterministic single-photon emitter, enabling the investigation of collective light–matter interactions at a fundamental level.
Go to contribution page
In previous work, we observed interference effects in both first- and...
Choose timezone
Your profile timezone: