KEK Theory Workshop 2023

Session

Plenary Session

29 Nov 2023, 10:00

KEK Tsukuba Campus

Conveners

Plenary Session: Tetsuya Onogi

• Sinya Aoki (YITP)

Plenary Session: Tatsuhiro Misumi

• Sinya Aoki (YITP)

Plenary Session: Tadashi Takayanagi

• Shin Nakamura (Chuo University)

Plenary Session: Tomonori Ugajin

• Shin Nakamura (Chuo University)

Plenary Session: Yuta Hamada

• Shin Nakamura (Chuo University)

Plenary Session: Hiroshi Suzuki

• Tamiaki Yoneya (University of Tokyo)

Plenary Session: Hikaru Kawai

• Tamiaki Yoneya (University of Tokyo)

8. Chiral theory as edge modes

Prof. Testuya Onogi (Osaka University)

29/11/2023, 10:00

I give a review (, possibly biased, ) on chiral theory as edge modes from a personal point of view. After reviewing the problem of chiral theory on the lattice, I comment on the standard method by symmetric mass generation of mirror fermion.I also review the recent work on chiral boson theory in 1+1 d by M. DeMarco, E. Lake, X.-G. Wen.

10. Research on QFT beyond the high-symmetry regime -resurgence, lattice and graph-

Prof. Tatsuhiro Misumi (Kindai University)

29/11/2023, 11:30

Since the establishment of the Standard Model of elementary particles, the research in quantum field theory has investigated non-perturbative analysis based on theories with high symmetry, such as supersymmetry. However, the Standard Model, including QCD, has relatively low symmetry, and it is getting important to analyze theories based on features appearing only in QFT with low symmetry. In...

29. On Holography in de Sitter Space

Prof. Tadashi Takayanagi (YITP, Kyoto University)

30/11/2023, 09:00

In this talk, we will discuss possible holographic dual of de Sitter Space from two different ideas. One is the original dS/CFT correspondence, and we will present an explicit CFT dual for three dimensional de Sitter space and examine its properties. The other is to study a holographic dual of a half de Sitter space, which has a time- like boundary. After we explain the results based on these...

30. The Petz (lite) recovery map for scrambling channel

Prof. Tomonori Ugajin (Rikkyo University)

30/11/2023, 10:15

We study the properties of the Petz recovery map in chaotic systems, such as the Hayden-Preskill setup for evaporating black holes and the SYK model. Since these systems exhibit the phenomenon called scrambling, we expect that the expression of the recovery channel $\mathcal{R}$ gets simplified, given by just the adjoint ${\mathcal{N}}^{†}$ of the original channel $\mathcal{N}$ which...

33. Exploring the Landscape of 6d supergravity

Mr Yuta Hamada (KEK)

30/11/2023, 11:30

Exploring the Landscape of 6d supergravity

31. Gradient flow exact renormalization group: Illustration in the gauged NJL model

Prof. Hiroshi Suzuki (Kyushu University)

01/12/2023, 09:00

Wilson's exact renormalization group (ERG) is a fundamental idea for defining quantum field theory at a non-perturbative level. The conventional ERG based on the momentum cutoff, however, cannot preserve the manifest gauge invariance and this fact hinders non-perturbative analyses of gauge theories using ERG. In this talk, I explain the gradient flow exact renormalization group (GFERG), which...

32. Problems and Prospects of Quantum Gravity and String Theory

Prof. Hikaru Kawai (National Taiwan University)

01/12/2023, 10:30

Current problems in quantum gravity and string theory will be summarized and how they may be overcome in the future will be discussed.