Amplitudes 2016 International Conference

Name: Amplitudes 2016 International Conference
Start: 2016-07-04T09:00:00+02:00
End: 2016-07-08T18:00:00+02:00
Location: Nordita, Stockholm

4 Jul 2016, 09:00 → 8 Jul 2016, 18:00 Europe/Stockholm

F2 (KTH Campus) (Nordita, Stockholm)

F2 (KTH Campus)

Nordita, Stockholm

Henrik Johansson (Nordita and Uppsala University), Joseph Minahan (Uppsala University), Konstantin Zarembo (Nordita), Monica Guică (Nordita and Uppsala University), Paolo Di Vecchia (Nordita)

Description

Amplitudes 2016

Scattering amplitudes have played a central role in quantum field theory since its inception. Recent years have seen a remarkable advance in our understanding and in our ability to compute scattering amplitudes, both for theoretical and phenomenological purposes. At the peak of the Nordic summer, Nordita and Stockholm will serve as hosts for the international conference Amplitudes 2016. The conference is devoted to exciting developments in the field of scattering amplitudes and related subjects. This includes, but is not limited to: amplitudes in gauge, gravity, and string theories, AdS/CFT and integrability, integrand structure of SYM and supergravity, IR and UV behavior, mathematics of polylogarithms and integrals, Grassmannians and twistor string approaches, symmetries and soft theorems, and connections to LHC phenomenology.

Schedule of talks.

Slides from the talks.

Videos from the talks (on Youtube).

Poster contributions (pdf files).

Invited speakers

Babis Anastasiou, ETH Zürich
Benjamin Basso, ENS Paris
Nathan Berkovits, São Paulo State
Zvi Bern, UCLA
Jacob Bourjaily, Niels Bohr Institute
Simon Caron-Huot, Niels Bohr Institute
Clifford Cheung, Caltech
Marco Chiodaroli, AEI Potsdam

Lance Dixon, SLAC
Claude Duhr, CERN
David Dunbar, Swansea
Einan Gardi, Edinburgh
Yvonne Geyer, Oxford
Michael Green, Cambridge
Omer Gurdogan, ENS Paris
Paul Heslop, Durham

Matin Mojaza, Nordita
Ricardo Monteiro, Oxford
Alexander Ochirov, Edinburgh
Jan Plefka, Humboldt
Robert Schabinger, Trinity College Dublin
Amit Sever, Tel Aviv University
Marcus Spradlin, Brown
Stephan Stieberger, MPI Munich

Jaroslav Trnka, UC Davis
Arkady Tseytlin, Imperial College
Yifan Wang, MIT
Congkao Wen, INFN Rome
Christopher White, Glasgow
Frank Wilczek, MIT
Ellis Yuan, IAS Princeton
Yang Zhang, ETH Zürich

Scientific Advisory Committee

Nima Arkani-Hamed (IAS Princeton)
Niklas Beisert (ETH Zürich)
Zvi Bern (UCLA)
Ruth Britto (Trinity College Dublin & IPhT/CEA Saclay)
Henriette Elvang (University of Michigan)
Gabriele Travaglini (Queen Mary U. of London)

Venue

The conference talks are located to the F2 lecture hall on the KTH campus, 15 min walk from Nordita, in the northern part of central Stockholm.

Social Events

Reception at Berns Salonger on Monday July 4, 7pm.
Conference dinner at Fotografiska on Wednesday July 6, 7pm. [How to get to Fotografiska.]
Suggestions for the free afternoon on Wednesday

Conference Poster

Design: Josh Nohle and Hans Mühlen

Financial Support

The conference is supported through funding from Nordita, Uppsala University, Knut and Alice Wallenberg Foundation and the Wenner-Gren Foundations.

$Wenner-Gren Foundations$

Conference series

Amplitudes 2016 at Nordita is part of a conference series that begun in 2009. Previous and upcoming conferences are:

Monday 4 July
- Mon 4 Jul
- Tue 5 Jul
- Wed 6 Jul
- Thu 7 Jul
- Fri 8 Jul
- 1
  
  On the Regge Limit of Polygonal Wilson Loops
  
  Speaker: Benjamin Basso (ENS)
  
  Slides
- 2
  
  One-Loop Integrands from the Riemann Sphere
  
  Speaker: Ricardo Monteiro (Oxford)
  
  Slides
- 3
  
  Two-Loop Amplitudes from the Riemann Sphere
  
  Speaker: Yvonne Geyer (Oxford)
  
  Slides
- 4
  
  Scattering Amplitudes and Cluster Algebras
  
  Speaker: Marcus Spradlin (Brown)
  
  Slides
- 5
  
  Multi-Regge Kinematics and Configurations of Points on the Riemann Sphere
  
  Speaker: Claude Duhr (CERN & UCLouvain)
  
  Slides
- 6
  
  The 3-Loop Soft Anomalous Dimension in Multi-Leg Amplitudes
  
  Speaker: Einan Gardi (Edinburgh)
  
  Slides
- 7
  
  Evaluating Four-Loop Three-Point Feynman Integrals by Differential Equations
  
  Speaker: Vladimir Smirnov (SINP MSU)
  
  Slides
Tuesday 5 July
- Mon 4 Jul
- Tue 5 Jul
- Wed 6 Jul
- Thu 7 Jul
- Fri 8 Jul
- 8
  
  Untwisting the Pure Spinor Formalism
  
  Speaker: Nathan Berkovits (ICTP-SAIFR/IFT-UNESP)
- 9
  
  Simplifying Color and Kinematic Structures of QCD
  
  Speaker: Alexander Ochirov (Edinburgh)
  
  Slides
- 10
  
  N=2 Supergravities as Double Copies of Gauge Theories
  
  Speaker: Marco Chiodaroli (AEI Potsdam)
  
  Slides
- 11
  
  Some Modular Properties of String Scattering Amplitudes
  
  Speaker: Michael Green (Cambridge)
  
  Slides
- Poster Session
- 12
  
  Renormalization Group and the S-matrix
  
  Speaker: Simon Caron-Huot (NBI)
  
  Slides
- 13
  
  The Classical Double Copy
  
  Speaker: Christopher White (Glasgow)
  
  Slides
- 14
  
  Feynman Parametrization Revisited
  
  Speaker: Ellis Yuan (IAS Princeton)
  
  Slides
- 15
  
  Singularity Structure of Gravity Amplitudes
  
  Speaker: Jaroslav Trnka (UC Davis)
  
  Slides
Wednesday 6 July
- Mon 4 Jul
- Tue 5 Jul
- Wed 6 Jul
- Thu 7 Jul
- Fri 8 Jul
- 16
  
  The Amplitude Bootstrap Reloaded
  
  Speaker: Lance Dixon (SLAC)
  
  Slides
- 17
  
  Integration-By-Parts Reduction from Unitarity, an Algebraic Geometry Story
  
  Speaker: Yang Zhang (ETH)
  
  Slides
- 18
  
  Universality in the Soft Behavior of Dilatons in String and Field Theories
  
  Speaker: Matin Mojaza (Nordita)
  
  Slides
- 19
  
  Four Point Amplitudes and Correlators in Planar N=4 SYM
  
  Speaker: Paul Heslop (Durham)
  
  Slides
Thursday 7 July
- Mon 4 Jul
- Tue 5 Jul
- Wed 6 Jul
- Thu 7 Jul
- Fri 8 Jul
- 20
  
  Higgs Hadroproduction: a Laboratory for Perturbation Theory
  
  Speaker: Babis ANASTASIOU (ETH)
  
  Slides
- 21
  
  Superamplitudes and Non-renormalization Conditions in Supergravities
  
  Speaker: Yifan Wang (MIT)
  
  Slides
- 22
  
  A Worst Case Survival Guide for the Four-Loop Form Factor
  
  Speaker: Robert Schabinger (Trinity College Dublin)
  
  Slides
- 23
  
  New Relations for Einstein-Yang-Mills Amplitudes
  
  Speaker: Stephan Stieberger (MPI Munich)
  
  Slides
- 24
  
  Constraining Effective Actions via Scattering Amplitudes
  
  Speaker: Congkao Wen (INFN Rome)
  
  Slides
- 25
  
  Holography, Soft Theorems, and Infinite-Dimensional Symmetries of Flat Space
  
  Speaker: Clifford Cheung (Caltech)
  
  Slides
- 26
  
  Threshold Spectroscopy of Quantum Statistics
  
  Speaker: Frank Wilczek (MIT)
  
  Slides
- 27
  
  Asymptotic Uniqueness of The Veneziano Amplitude
  
  We consider weakly coupled theories of massive higher spin particles. This class of models includes, for instance, tree-level String Theory and Large-N Yang-Mills theory. The S-matrix in such theories is a meromorphic function obeying unitarity and crossing symmetry. We discuss the (unphysical) regime s,t ≫ 1, in which we expect the amplitude to be universal and exponentially large. We develop methods to study this regime and show that the amplitude necessarily coincides with the Veneziano amplitude there. In particular, this implies that the leading Regge trajectory, j(t), is asymptotically linear in Yang-Mills theory. Further, our analysis shows that any such theory of higher spin particles has stringy excitations and infinitely many asymptotically parallel daughter trajectories. More generally, we argue that any weakly coupled theory with at least one higher spin particle must have strings.
  
  Speaker: Amit Sever (Tel Aviv University)
Friday 8 July
- Mon 4 Jul
- Tue 5 Jul
- Wed 6 Jul
- Thu 7 Jul
- Fri 8 Jul
- 28
  
  On Scattering Amplitudes in Higher Spin Theories
  
  Speaker: Arkady Tseytlin (Imperial College)
  
  Slides
- 29
  
  Stratifying (Non-Planar) On-Shell Varieties
  
  Speaker: Jacob Bourjaily (NBI)
- 30
  
  Integrable Chiral Scalars and Feynman Integrals
  
  Speaker: Omer Gurdogan (LPTENS)
  
  Slides
- 31
  
  CHY in the Collinear Limit
  
  Speaker: Jan Plefka (Humboldt U.)
  
  Slides
- 32
  
  The Maximally Symmetric Two-Loop QCD Amplitudes
  
  Speaker: David Dunbar (Swansea)
  
  Slides
- 33
  
  The Two-Loop Divergence of Gravity Reanalyzed
  
  Speaker: Zvi Bern (UCLA)
  
  Slides

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