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Nonequilibrium steady state generated by a moving defect: the supersonic threshold

Abstract:

We consider the dynamics of a system of free fermions on a 1D lattice in the presence of a defect moving at constant velocity. The defect has the form of a localized time-dependent variation of the chemical potential and induces at long times a nonequilibrium steady state (NESS), which spreads around the defect. We present a general formulation that allows recasting the time-dependent protocol in a scattering problem on a static potential. We obtain a complete characterization of the NESS. In...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Role:
Author
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
120
Issue:
6
Pages:
Article: 060602
Publication date:
2018-02-08
Acceptance date:
2018-01-22
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:827075
URN:
uri:3ed8dea4-64b5-4f12-914a-013ef5a2d93c
UUID:
uuid:3ed8dea4-64b5-4f12-914a-013ef5a2d93c
Local pid:
pubs:827075
Language:
English

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