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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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
118
issue
25
publisher
American Physical Society
external identifiers
  • scopus:85021370031
  • wos:000404004200011
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
2017-09-18 11:38:06
@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>},
  articleno    = {256801},
  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},
  volume       = {118},
  year         = {2017},
}