visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2017-11-03 14:30 
연사  
장소 #1323 (1st fl., E6-2.) 

In this talk we present the recent studies on the charge relaxation in the mesoscopic resistor-capacitor circuit consisting of a quantum dot coupled to Majorana fermion modes. Here we consider two Majorana edge modes: (1) the edge modes in a chiral topological superconductor and (2) the localized Majorana bound state formed at the end of a superconducting wire. In both cases, we report a complete suppression of the low-frequency charge relaxation due to a Majorana-oriented destructive interference if some conditions are met. On the other hand, by tuning the dot level or the overlap between Majorana bound states, the relaxation resistance can be substantially enhanced, which is also due to the nature of Majorana fermions, which are their own antiparticles and are composed of particle and hole excitations in the same abundance. Finally, we discuss the possibility that the quantum capacitance in Majorana systems is not necessarily proportional to the density of states.

20171103_이민철.pdf

번호 날짜 연사 제목
공지 2025-02-11 12:00    물리학과 Seminar, Colloquium, 특강 홍보 요청 절차 안내
170 2019-09-10 15:00    Two-Stage Kondo Effect file
169 2017-02-01 14:00    Quantum electron optics using flying electrons
168 2015-11-23 13:30    What's Beyond the Standard Model? Lessons from Run I and what might come in Run II
167 2016-07-08 11:00    Isostatic magnetism
166 2016-05-19 15:00    The CERN Resonant WISP Search: Development, Results and Lesson-Learned
165 2023-06-22 16:00    [CAPP Seminar] The muon g-2 puzzle file
164 2015-10-15 10:00    Development of Large-Bore, High Field Magnets at the NHMFL
163 2017-03-24 14:30    Topological Dynamics
162 2018-10-26 16:00    Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
161 2015-07-16 16:00    Next-generation ultrafast laser technology for nonlinear optics and strong-field physics
160 2023-04-27 11:00    Inverse Shapiro steps and coherent quantum phase slip in superconducting nanowires
159 2022-08-18 10:00    Disorder-driven phase transition in the second-order non-Hermitian skin effect
158 2018-11-01 16:00    Direct holography from a single snapshot file
157 2016-03-11 13:30    Topological phases of matter in nonequilibrium: Topology of the Wannier-Stark ladder
156 2015-12-11 13:30    Quantum spin liquid in the 1/3 depleted triangular lattice Ba3(Ru1-xIrx)Ti2O9
155 2021-07-29 14:00    Gravitationally Induced Dark Sector and Inflationary Dynamics file
154 2022-05-13 14:30    Topological Superconducting Spintronics Towards Zero-Power Computing Technologies file
153 2016-12-09 16:00    Shift Charge and Spin Photocurrents in Dirac Surface States of Topological Insulator
152 2018-05-11 14:30    Disordered Floquet topological insulators file
151 2023-09-14 16:00    [CAPP seminar] Dark matter searches in Water Cherenkov Detectors file