visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2018-04-11 16:00 
일시 April 11 (Wed), 4:00pm 
장소 #1323 (E6-2, 1st fl.) 
연사 Dr. Young-Sik Ra 

Physics Seminar

 

Non-Gaussian states of multimode light generated via hybrid quantum information processing

 

Dr. Young-Sik Ra

Laboratoire Kastler Brossel, Paris, France

 

April 11 (Wed), 4:00pm

#1323 (E6-2, 1st fl.)

 

 

Abstract:

Optical quantum information processing can be classified into two categories depending on the way of encoding quantum information on light: one harnesses the particle nature (photon)−called discrete-variable approach−, and the other exploits the wave nature (electric field)−called continuous-variable approach. Basic nonclassical lights for the two are single photon and squeezed vacuum, respectively. Recently, a new field of study is emerging, called hybrid quantum information processing that combines the two conventional approaches to complement each other.

 

In this seminar, I will present generation of non-Gaussian quantum states of multimode light based on the hybrid quantum information processing. Squeezed vacuum, which is employed in the continuous-variable approach, is a Gaussian state, which can be described by moments up to the second order (i.e. variance). However, it has limitations on quantum computing and quantum communication, while single-photon subtraction used in the discrete-variable approach can provide non-Gaussian characteristics. We have implemented a single-photon subtractor compatible with multimode squeezed vacuum and generated non-Gaussian multimode quantum states. The novel quantum states of light will find applications in various quantum technologies such as distillation of entangled states, universal quantum computing, and quantum metrology.

 

Contact: Yongseop Kang, Administration Team (T.2599)

 

Department of Physics

번호 날짜 장소 제목
공지 2022-11-25 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations
257 2019-09-10 15:00  #2502, E6-2  (2+1) D Duality Web from 3D Euclidean Lattice file
256 2019-09-10 15:00  E6-2. 1st fl. #1323  Two-Stage Kondo Effect file
255 2019-09-02 16:00  Seminar Room 1501  Fall 2019: Physics Colloquium file
254 2019-08-27 16:00  Rm. 1323, E6  Critical current properties of Fe-based superconductors file
253 2019-08-22 16:00  #1323, E6-2  Physics and Applications in Nanoelectronics and Nonomechanics file
252 2019-08-19 10:00  Rm. 1322, E6-2  Tutorials on Multimode Quantum Optics in the Continuous Variable Regime file
251 2019-08-16 14:00  E6 Room(#1323)  Multiferroic and Magnetoelectric Effects by Tailoring Interfacial Chemistry and Physics in Correlated Oxides file
250 2019-08-14 16:00  Rm. 1323, E6  Quantum Optics, at the heart of quantum metrology and quantum information file
249 2019-08-06 16:00  E6 Room(#1323)  Visualization of in-plane piezoresponse vector fields file
248 2019-08-01 14:00  E6 Room(#1323)  Low-density Superconductivity in SrTiO3 Probed by Planar Tunneling Spectroscopy file
247 2019-07-31 16:00  E6-2, #1323  Features of ballistic superconducting graphene file
246 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
245 2019-07-25 16:00  E6-2, #1323  Band topology of twisted bilayer graphene file
244 2019-07-21 12:00  E6-2,# 5318  Challenges and Opportunities in Theoretical Particle Physics 2019 file
243 2019-07-16 16:00  Rm. 1323 (E6-2)  2019 Physics Distinguished Lecture file
242 2019-07-10 16:00  Academic Cltural Complex (E9) 5층 스카이라운지  Public Lectures file
241 2019-07-08 14:00  E6, #1322  Ultrabroadband squeezed pulses and their relation to relativity file
240 2019-07-03 15:00  E6-2, 2501  Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file
239 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
238 2019-06-28 13:30  #1323, E6-2  Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file