visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-22 10:00 
연사  
장소 E6-2, #5301 & zoom 
There will be a High-Energy Theory Seminar this week by Prof. Soonwon Choi from MIT. The seminar may be of interest to quantum information and condensed matter people as well.
 
Time: Nov. 22 (Wed) 10 a.m.
 
Title: Exact Quantum Algorithms to Recognize Quantum Phases of Matter
 
Abstract: In  this talk, we explore the relationship between renormalization group  (RG) flow and error correction by constructing quantum algorithms that  exactly recognize 1D symmetry-protected topological (SPT) phases protected by finite internal Abelian symmetries. For each SPT phase, our algorithm runs  a quantum circuit which emulates RG flow: an arbitrary input ground  state wavefunction in the phase is mapped to a unique  minimally-entangled reference state, thereby allowing for efficient  phase identification. This construction is enabled by viewing a generic  input state in the phase as a collection of coherent `errors' applied to  the reference state, and engineering a quantum circuit to efficiently  detect and correct such errors. Importantly, the error correction  threshold is proven to coincide exactly with the phase boundary. We  discuss the implications of our results in the context of condensed  matter physics, machine learning, and near-term quantum algorithms.
번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
292 2021-03-25 16:00    Search for dark matter axion with Rydberg atoms file
291 2021-04-02 14:30    Quantum computing and entanglement generation using trapped ions and photons
290 2021-04-02 16:00    Van der Waals heterostructures for orbital gating-based phototransistors and electronic spectroscopy
289 2021-04-09 10:00    Integrated Lithium Niobate Photonics file
288 2021-04-19 19:00    Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping file
287 2021-05-14 14:30    Electrically tunable spin valve effect in vertical van-der-Waals magnetic tunnel junctions file
286 2021-05-14 16:00    Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters file
285 2021-05-17 17:00    Spin current generation and detection in uniaxial antiferromagnets file
284 2021-05-27 16:00    찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
283 2021-06-08 10:00    Photonic crystal devices for sensing file
282 2021-06-11 14:30    Engineering sound waves and vibrations in multi-mode nanomechanical systems file
281 2021-06-11 16:00    Pseudogap in surface-doped black phosphorus file
280 2021-06-22 17:00    Spintronics meets Quantum Materials file
279 2021-07-29 14:00    Gravitationally Induced Dark Sector and Inflationary Dynamics file
278 2021-11-02 16:00    Metrology of Band Topology via Resonant Inelastic X-ray Scattering file
277 2021-12-03 14:30    Topological Spin Textures: Skyrmions and Beyond file
276 2021-12-03 16:00    Nonequilibrium Heat Transport in Elemental Metals Probed by an Ultrathin Magnetic Thermometer file
275 2022-01-11 15:00    Ultrafast optical studies on CDW collective modes of the Weyl-CDW (TaSe4)2I file
274 2022-01-12 11:00    Spectroscopic study of trapped ions towards probing dark matter and new physics file
273 2022-01-17 14:00    Five Lectures on Observational Probes of Dark Energy file