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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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305 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
304 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
303 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
302 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
301 2019-05-03 11:00  E6-2. 2st fl. #2502  Exotic Magnetism file
300 2019-05-08 16:00  E6 Room(#1323)  Imaging valley dependent electron transport in 2D semiconductors file
299 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
298 2019-05-21 16:00  #5318, E6-2  Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
297 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
296 2019-05-30 16:00  #1323, E6-2  Tuning the excitonic properties of semiconductors with light-matter interactions file
295 2019-05-31 11:00  #1323, E6-2  Cavity QED with Spin Qubits file
294 2019-06-04 17:00  #1323, E6-2  Stochastic nature of bacterial eradication using antibiotics file
293 2019-06-12 15:00  Rm# 1323, E6-2  The relation between free and interacting fermionic SPT phases file
292 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
291 2019-06-24 11:00  E6-2, #1323  Topological photonic anomalies file
290 2019-06-27 14:00  #2502, E6-2  Gapless Kitaev Spin Liquid to Loop and String Gases file
289 2019-06-28 13:30  #1323, E6-2  Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file
288 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
287 2019-07-03 15:00  E6-2, 2501  Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file