visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-29 10:00 
일시 Nov. 29th (Wed), 10 AM 
장소 Zoom 
연사 Thomas Hartman (Cornell) 

We welcome everyone to the the High Energy Theory Seminar.

The seminar will be held only over Zoom.

 

 

Speaker: Thomas Hartman (Cornell)

Time: Nov. 29th (Wed), 10 AM
Zoom link: https://kaist.zoom.us/j/89345207778?pwd=UVpXaXVJR08zQmJUL2diMFpJaGVZQT09

Title: "Averaged null energy and the renormalization group"
Abstract: The averaged null energy operator is a light-ray integral of the null energy. This operator is known to be closely tied to causality in AdS/CFT, to deformations of the modular Hamiltonian in quantum field theory, and to the Lorentzian inversion formula in CFT. I will discuss a new connection between averaged null energy and the monotonicity of the renormalization group, and use the averaged null energy condition (ANEC) to derive the c-theorem in two dimensions and the a-theorem in four dimensions. The derivation is based on contact terms that appear in correlation functions of the light-ray operator. Combined with previous results, this also gives a new derivation of the c- and a-theorems from the monotonicity of relative entropy, and hints at a more general role for Lorentzian inversion and light-ray operators in non-conformal QFTs.
 
번호 날짜 장소 제목
107 2023-09-13 16:00  E6-2, #2502  [High Energy Theory Seminar] Cosmic Birefringence from Dark Photon
106 2024-01-03 11:00  E6-2, #1323  Interplay of Strong Correlations, Topology, and Disorder in 2D Quantum Matters
105 2024-03-20 16:00  E6-2 #2502  [High-Energy Theory Seminar] Black hole states at finite N
104 2023-02-20 17:00  KI building (E4), Lecture Room Red (B501)  (Optics Seminar) Neural Holography for Next generation Virtual and Augmented Reality Displays file
103 2024-03-27 16:00  E6-2, #2502  [High Energy Theory Seminar] The Callan Rubakov Effect
102 2023-04-05 16:00  E6-2, #2502  [High Energy Theory Seminar]Anomalies of Discrete 1-Form Symmetries in QCD-like Theories
101 2019-07-08 14:00  E6, #1322  Ultrabroadband squeezed pulses and their relation to relativity file
100 2024-10-31 13:00  E6-2 / Rm. 3441  Mini-workshop on first-principles DFT methods and applications
99 2022-11-03 13:00  E6-2 #1323  [High-Energy Theory Seminar] Supersymmetric observables via Fermi-gas method
98 2024-11-13 12:00  Online  [11/13(수) 물리학과 세미나 안내] Separability as a window to mixed-state quantum phases and phase transitions / Tarun Grover (UC San Diego, Associate Professor)
97 2020-09-14 17:30  Zoom webinar  KAIST Global Forum for Spin and Beyond (Third Forum) file
» 2023-11-29 10:00  Zoom  [High Energy Theory Seminar] Averaged null energy and the renormalization group
95 2023-06-30 11:00  E6-6 #1501  The Dual Mode Quantum Computer file
94 2021-06-08 10:00  Zoom webinar  Photonic crystal devices for sensing file
93 2024-12-06 16:00  E6-2 #1323  [Physics Seminar] Vladimir Y. Chernyak (12/6(Fri.) 16:00 / E6-2 #1323, Professor, Department of Chemistry, Wayne State University)
92 2021-06-22 17:00  Zoom webinar  Spintronics meets Quantum Materials file
91 2018-12-26 16:00  E6-1. 3rd fl. #3434  Informal Workshop on Topology and Correlation file
90 2021-01-28 15:00  Zoom  Topological Transport of Deconfined Hedgehogs in Magnets file
89 2024-07-03 16:00  E6-2 #2502  [High Energy Theory Seminar] Holographic duals of Higgsed Dpb(BCD)
88 2016-09-05 16:00  Natual Scien Bldg.(E6)m #1501  Physics Colloquium : 2016 Fall file