visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

Putting a spin on the Josephson effect

2022.09.22 15:50

admin 조회 수:361

날짜 2022-09-30 14:30 
일시 Sep. 30 (Fri.), 02:30 PM 
장소 E6-2. 1st fl. #1323 & Zoom 
연사 Dr. Sunghun Park (IBS-PCS) 

SRC Seminar

 

 

Putting a spin on the Josephson effect

 

Dr. Sunghun Park

Center for Theoretical Physics of Complex Systems, IBS-PCS

 

Sep. 30 (Fri.), 02:30 PM

E6-2. 1st fl. #1323

https://kaist.zoom.us/j/83179561572
회의 ID: 831 7956 1572
암호: 216531

 

 

 

Abstract:

Finding qubit with long coherence times and high controllability is a long-standing goal in quantum information science and condensed matter physics. Spin degree of freedom confined by a superconducting gap has been considered as a new resource for such qubits. In this talk, I will present our recent theoretical and experimental studies on spin-split Andreev states in a semiconducting nanowire Josephson junction performed in collaboration with an experimental group. I provide a theoretical model for the junction which takes into account Rashba spin-orbit coupling in the nanowire containing several transverse subbands, identifying the spin-orbit splitting of Andreev states. The theory allows us to understand the response of the microwave resonator coupled to the junction observed in circuit quantum electrodynamics experiments. Finally, I discuss the possible uses of the Andreev spin states as a new superconducting qubit.

 

 

Contact: SunYoung Choi, (sun.0@kaist.ac.kr)

Center for Quantum Coherence in Condensed Matter, KAIST

번호 날짜 장소 제목
223 2024-03-27 16:00  E6-2, #2502  [High Energy Theory Seminar] The Callan Rubakov Effect
222 2023-09-26 16:00  E6-2, #2502  [High Energy Theory Seminar]A new step in interacting dark sector cosmologies
221 2023-06-14 16:00  E6-2, #2502  [High-Energy Theory Seminar]Vertex algebras and extended operators in 4d N=2 SCFTs
220 2024-01-16 16:00  E6-2, #2502  [High Energy Theory Seminar] Towards quantum black hole microstates
219 2023-06-16 13:00  E6-2, #2502  Quantum critical states under extreme conditions
218 2023-11-01 16:00  E6-2, #2502  [High Energy Theory Seminar] Modular functions and 3D N=4 rank-zero superconformal field theories
217 2023-08-29 16:00  E6-2, #2502  [High Energy Theory Seminar] Towards string loop corrections in Calabi-Yau orientifold compactifications.
216 2023-06-01 16:00  E6-2, #5301  Hall viscosity and topological phenomena
215 2023-11-22 10:00  E6-2, #5301 & zoom  [High Energy Theory Seminar] Exact Quantum Algorithms to Recognize Quantum Phases of Matter
214 2020-02-12 13:00  E6-2, #5318  From inflation to new weak-scale file
213 2015-11-06 16:30  E6-2, #5318  Topological Dirac line nodes in centrosymmetric semimetals
212 2015-10-23 15:00  E6-2, #5318  Development of a Rogowski Coil as a new beam position monitor
211 2015-07-16 16:00  E6-2, 1318  Next-generation ultrafast laser technology for nonlinear optics and strong-field physics
210 2015-07-16 16:00  E6-2, 1501  KAIST Physics Distinguished Lecture
209 2016-03-11 13:30  E6-2, 1501 외  Physics Seminar Serises : 2016 Spring file
208 2019-07-03 15:00  E6-2, 2501  Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file
207 2018-06-14 10:00  E6-2, 2nd fl. #2502  Phonons and polariton-like particles in trapped ions for quantum computation and quantum simulation file
206 2015-10-16 15:00  E6-2, 5th fl. #5318  High Magnetic Fields to Probe the sub-eV range of Particle/Astroparticle Physics - From the OSQAR experiments at CERN up to new perspectives at LNCMI-Grenoble
205 2015-10-15 10:00  E6-2, 5th fl. #5318  Development of Large-Bore, High Field Magnets at the NHMFL
204 2017-12-15 09:20  E6-2, Lecture Room #1323  Workshop on Magnetism in Unconventional Superconductors 개최 file