visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

Putting a spin on the Josephson effect

2022.09.22 15:50

admin 조회 수:273

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
159 2018-06-01 11:00  E6-2. 1st fl. #1323  Topological phases in low-dimensional quantum materials file
158 2018-11-09 14:30  E6-2. 1st fl. #1323  Moiré superlattices – from twisted bilayer graphene to quasicrystal file
157 2018-11-09 16:00  E6-2. 1st fl. #1323  Quantum sensing and imaging with diamond defect centers for nano-scale spin physics file
156 2018-12-07 14:30  E6-2. 1st fl. #1323  Spin generation from heat and light in metals file
155 2018-12-07 16:00  E6-2. 1st fl. #1323  Novel probes of interacting electrons in 2D systems file
154 2018-12-11 16:00  E6-2. 1st fl. #1323  Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
153 2018-12-16 16:00  E6-2. 1st fl. #1323  Lectures on 2d Conformal Field Theory file
152 2018-12-26 16:00  E6-2. 1st fl. #1323  Brane-like defect in 3D toric code file
151 2018-12-27 16:00  E6-2. 1st fl. #1323  Quantum Innovation (QuIN) Laboratory file
150 2019-03-29 14:30  E6-2. 1st fl. #1323  Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
149 2019-03-29 16:00  E6-2. 1st fl. #1323  Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM file
148 2019-04-19 16:00  E6-2. 1st fl. #1323  Graphene and hBN heterostructures file
147 2019-04-19 14:30  E6-2. 1st fl. #1323  A family of finite-temperature electronic phase transitions in graphene multilayers file
146 2019-09-10 15:00  E6-2. 1st fl. #1323  Two-Stage Kondo Effect file
145 2019-09-27 16:00  E6-2. 1st fl. #1323  0D/1D/2D/3D III-V materials grown by MBE for Optelectronics file
144 2019-09-27 14:30  E6-2. 1st fl. #1323  Spin-charge conversion in topological insulators for spintronic applications file
143 2019-11-01 14:30  E6-2. 1st fl. #1323  Squeezing the best out of 2D materials file
142 2019-11-01 16:00  E6-2. 1st fl. #1323  Electron transport through weak-bonded contact metal with low dimensional nano-material file
141 2022-06-10 14:30  E6-2. 1st fl. #1323  Combinatorial strategy for condensed matter physics: study on rare earth hexaborides thin films file
140 2022-06-10 16:00  E6-2. 1st fl. #1323  Fe5GeTe2의 나선형 자성특성과 자기저항의 전류밀도 의존성 연구 file