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날짜 2023-08-23 16:00 
일시 Aug 23rd (Wed) 4 pm 
장소 E6-2, #1322 
연사 Monica Jinwoo Kang (Caltech) 
We are happy to announce the High-Energy Theory Seminar this week by Dr. Monica Kang from Caltech.
Everyone is welcome to participate.
 
Speaker: Monica Jinwoo Kang (Caltech)
Time: Aug 23rd (Wed) 4 pm
Place: E6-2, #1322

Title: A spacetime tensor network for AdS3/CFT2
 
Abstract: I will first motivate how tensor networks are beneficial to study gravity via holography. I will construct a time-independent model of AdS/CFT, which is an infinite-dimensional analog of the HaPPY code. This admits decaying two-point correlation functions and fractal structures, which shows the CFT nature on the boundary. Utilizing this, I will present a spacetime tensor network, built as a lattice model with discretized spacetime, but with infinitesimal sizing to take both spacial and time directions to continuum. This new code is analyzed as a growing series of stabilizer codes defined with respect to their Hilbert spaces, which are related by isometric maps. The new spacetime tensor network model has incorporated U(1) time evolution with arising Hubeny—Rangamani—Takayanagi surface. I will demonstrate that adding the time structures with correct stabilizer modifications yields correct quantum error-correcting constructions capturing genuine spacetime with lightcone and causality, thereby showing a true emerging bulk geometry.
 
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509 2019-12-05 16:00  #1323, E6-2  Subwavelenth Photonic Devices: From Single Photon Sources to Solar Cell file
508 2019-11-05 16:00  #1323, E6-2  Study on nanomaterials by the development of ultrahigh resolution laser-photoelectron microscopy (PEEM) file
507 2019-11-14 16:00  #1323, E6-2  Semi-classical model of polariton propagation file
506 2019-12-18 16:00  #1323, E6-2  Road to Higher Tc Superconductivity file
505 2019-11-28 16:00  #1323, E6-2  Generation of coherent EUV emissions using ultrashort laser pulses file
504 2019-11-07 16:00  #1323, E6-2  Integrated quantum photonics with solid-state quantum emitters file
503 2020-02-20 16:00  #1323, E6-2  Unconventional superconductivity in the locally non-centrosymmetric heavy-fermion CeRh2As2 file
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501 2018-10-18 10:00  #1323, E6-2  Understanding membrane protein folding using single-molecule force techniques file