Advanced search
1 file | 294.04 KB

Read-Green resonances in a topological superconductor coupled to a bath

Pieter Claeys (UGent) , Stijn De Baerdemacker (UGent) and Dimitri Van Neck (UGent)
(2016) PHYSICAL REVIEW B. 93(22).
Author
Organization
Abstract
We study a topological superconductor capable of exchanging particles with an environment. This additional interaction breaks particle-number symmetry and can be modeled by means of an integrable Hamiltonian, building on the class of Richardson-Gaudin pairing models. The isolated system supports zero-energy modes at a topological phase transition, which disappear when allowing for particle exchange with an environment. However, it is shown from the exact solution that these still play an important role in system-environment particle exchanges, which can be observed through resonances in low-energy and low-momentum level occupations. These fluctuations signal topologically protected Read-Green points and cannot be observed within traditional mean-field theory.
Keywords
QUANTUM, METALLIC GRAINS

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 294.04 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Claeys, Pieter, Stijn De Baerdemacker, and Dimitri Van Neck. 2016. “Read-Green Resonances in a Topological Superconductor Coupled to a Bath.” Physical Review B 93 (22).
APA
Claeys, Pieter, De Baerdemacker, S., & Van Neck, D. (2016). Read-Green resonances in a topological superconductor coupled to a bath. PHYSICAL REVIEW B, 93(22).
Vancouver
1.
Claeys P, De Baerdemacker S, Van Neck D. Read-Green resonances in a topological superconductor coupled to a bath. PHYSICAL REVIEW B. 2016;93(22).
MLA
Claeys, Pieter, Stijn De Baerdemacker, and Dimitri Van Neck. “Read-Green Resonances in a Topological Superconductor Coupled to a Bath.” PHYSICAL REVIEW B 93.22 (2016): n. pag. Print.
@article{8042654,
  abstract     = {We study a topological superconductor capable of exchanging particles with an environment. This additional interaction breaks particle-number symmetry and can be modeled by means of an integrable Hamiltonian, building on the class of Richardson-Gaudin pairing models. The isolated system supports zero-energy modes at a topological phase transition, which disappear when allowing for particle exchange with an environment. However, it is shown from the exact solution that these still play an important role in system-environment particle exchanges, which can be observed through resonances in low-energy and low-momentum level occupations. These fluctuations signal topologically protected Read-Green points and cannot be observed within traditional mean-field theory.},
  articleno    = {220503},
  author       = {Claeys, Pieter and De Baerdemacker, Stijn and Van Neck, Dimitri},
  issn         = {2469-9950},
  journal      = {PHYSICAL REVIEW B},
  keyword      = {QUANTUM,METALLIC GRAINS},
  language     = {eng},
  number       = {22},
  pages        = {5},
  title        = {Read-Green resonances in a topological superconductor coupled to a bath},
  url          = {http://dx.doi.org/10.1103/PhysRevB.93.220503},
  volume       = {93},
  year         = {2016},
}

Altmetric
View in Altmetric
Web of Science
Times cited: