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 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
546 2023-04-28 11:00    Tkachenko wave: From the modern field theory viewpoint
545 2018-10-18 10:00    Understanding membrane protein folding using single-molecule force techniques file
544 2023-07-19 16:00    [High-Energy Theory Seminar]Deriving the Simplest Gauge-String Duality
543 2023-03-02 11:00    Probing Anomalies of Non-Invertible Symmetries with Symmetry TFTs
542 2020-07-02 16:00    An irreversible qubit-photon coupling for the detection of itinerant microwave photons file
541 2015-08-04 11:00    Propagation of ultrasound through two- and three-dimensional strongly scattering media
540 2016-07-07 14:00    Let there be topological superconductors
539 2017-09-22 13:00    Superconductor-metal-insulator transition in thin Tantalum films file
538 2017-06-02 14:30    Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal) file
537 2016-05-24 16:00    Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density
536 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
535 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
534 2016-04-04 09:30    Radio frequency engineering
533 2016-11-1 10:30    Time scale dependent dynamics in InAs/InP quantum dot gain media
532 2018-10-25 16:00    Abelian and non-Abelian dark photons file
531 2024-08-14 11:00    Pair Density Waves and Supercurrent Diode Effect in Altermagnets
530 2017-09-22 16:00    Unexpected Electron-Pairing in Integer Quantum Hall Effect file
529 2017-09-22 14:30    Quantum Electronic Transport in Graphene Hybrid Nanostructures file
528 2024-05-14 16:00    [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
527 2018-12-07 14:30    Spin generation from heat and light in metals file