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Optimal Quantum Interference Thermoelectric Heat Engine with Edge States

Samuelsson, Peter LU ; Kheradsoud, Sara LU and Sothmann, Björn (2017) In Physical Review Letters 118(25).
Abstract

We show theoretically that a thermoelectric heat engine, operating exclusively due to quantum-mechanical interference, can reach optimal linear-response performance. A chiral edge state implementation of a close-to-optimal heat engine is proposed in an electronic Mach-Zehnder interferometer with a mesoscopic capacitor coupled to one arm. We demonstrate that the maximum power and corresponding efficiency can reach 90% and 83%, respectively, of the theoretical maximum. The proposed heat engine can be realized with existing experimental techniques and has a performance robust against moderate dephasing.

Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
118
issue
25
article number
256801
publisher
American Physical Society
external identifiers
  • wos:000404004200011
  • pmid:28696742
  • scopus:85021370031
ISSN
0031-9007
DOI
10.1103/PhysRevLett.118.256801
language
English
LU publication?
yes
id
5622fe52-843a-4985-a3ae-089e1a0d2884
date added to LUP
2017-07-11 12:47:37
date last changed
2025-10-28 17:36:05
@article{5622fe52-843a-4985-a3ae-089e1a0d2884,
  abstract     = {{<p>We show theoretically that a thermoelectric heat engine, operating exclusively due to quantum-mechanical interference, can reach optimal linear-response performance. A chiral edge state implementation of a close-to-optimal heat engine is proposed in an electronic Mach-Zehnder interferometer with a mesoscopic capacitor coupled to one arm. We demonstrate that the maximum power and corresponding efficiency can reach 90% and 83%, respectively, of the theoretical maximum. The proposed heat engine can be realized with existing experimental techniques and has a performance robust against moderate dephasing.</p>}},
  author       = {{Samuelsson, Peter and Kheradsoud, Sara and Sothmann, Björn}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{25}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Optimal Quantum Interference Thermoelectric Heat Engine with Edge States}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.118.256801}},
  doi          = {{10.1103/PhysRevLett.118.256801}},
  volume       = {{118}},
  year         = {{2017}},
}