Souvik Bera (APCTP)
Time: 14:00 - 15:00
Title: Feynman Integrals and Multivariate Hypergeometric Functions
Abstract: I shall discuss multivariate hypergeometric functions, their analytic continuations, series expansion about their parameters and their relation to Feynman integrals.
Tung Tran (APCTP)
Time: 15:00 - 16:00
Title: QFT approaches toward black hole scattering amplitudes
Abstract: We discuss some recent approaches in constructing models for massive higher-spin fields that are relevant for the study of black hole scatterings. In particular, we discuss in details how some of the QFT approaches can derive the AHH vertices between two massive spinning particles and a massless gauge field. We commend on the recent "chiral approach" that can significantly reduce the workload of constructing models for massive higher-spin fields.
Hojin Lee (Seoul National University)
Time: 16:00 - 17:00
Title: Off-shell recursions for Kerr metric
Abstract: I will present briefly about an on-going work on reproducing the Kerr metric using off-shell recursion method. The method is expected to provide powerful computational efficiency on various QFT problems. The present work will be a significant example of the strength and efficiency of the method.
Christian Jepsen (KIAS)
Time: 10:00 - 11:00
Title: String Amplitudes: Bottom-up meets top-down
Abstract: In recent years, the S-matrix bootstrap has been exploring possible generalizations of string theory amplitudes from the ground up. In this talk, I will discuss aspects of such generalizations. In particular I will demonstrate that the q-deformed Veneziano amplitude known as the Coon amplitude, which exhibits an accumulation point spectrum, secretly contains non-unitarities. And I will show how a particular hypergeometric deformation of the Veneziano amplitude due to Cheung and Remmen turns out to be the first in a tower of brane amplitudes.
Kanghoon Lee (APCTP)
Time: 11:00 - 12:00
Title: TBA
Abstract: TBA
Myeonghun Park (Seoul National University of Science and Technology)
Time: 14:00 - 15:00
Title: Quantum Information with the LHC
Abstract: TBA
Sangmin Lee (Seoul National University)
Time: 15:00 - 16:00
Title: Classical shadow of quantum scattering
Abstract: The classical eikonal is the generator of the canonical transformation between the in and out asymptotic phase spaces. It can be regarded as the classical limit of the log of the quantum S-matrix. We explain how to compute the classical eikonal using the Magnus expansion and the Hopf algebra structure underlying the expansion. An example for applying the method to the post-Minkowskian expansion of a gravitational binary system is given.
Kyungsun Lee (KIAS)
Time: 16:00 - 17:00
Title: Implications of nonlinear symmetries for the soft limits of scattering amplitudes
Abstract: In this talk, I will begin with a brief introduction to the previous work on TTbar deformation that motivated us to explore non-linear realization. Non-linear realization, or so-called coset construction provides a framework for constructing spontaneosly symmetry broken effective theories. I will then switch the gear to review the implications of the non-linear symmetries of Goldstone fields, particularly their role in the soft limits of scattering amplitudes. This will be illustrated through two examples: the Dirac-Born-Infeld theory and the Galileon theory.
Junggi Yoon (APCTP)
Time: 10:00 - 11:00
Title: Symplectic fermion
Abstract: TBA
Tianheng Wang (Seoul National University)
Time: 11:00 - 12:00
Title: TBA
Abstract: TBA