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Quantum Szilard Engine with Attractively Interacting Bosons

Bengtsson, J. LU ; Tengstrand, M. Nilsson LU ; Wacker, A. LU ; Samuelsson, P. LU ; Ueda, M.; Linke, H. LU and Reimann, S. M. LU (2018) In Physical Review Letters 120(10).
Abstract

We show that a quantum Szilard engine containing many bosons with attractive interactions enhances the conversion between information and work. Using an ab initio approach to the full quantum-mechanical many-body problem, we find that the average work output increases significantly for a larger number of bosons. The highest overshoot occurs at a finite temperature, demonstrating how thermal and quantum effects conspire to enhance the conversion between information and work. The predicted effects occur over a broad range of interaction strengths and temperatures.

Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
120
issue
10
publisher
American Physical Society
external identifiers
  • scopus:85043698253
ISSN
0031-9007
DOI
10.1103/PhysRevLett.120.100601
language
English
LU publication?
yes
id
b7cdf16d-f9c5-45a2-a02f-e61e64f2c296
date added to LUP
2018-03-27 10:48:21
date last changed
2018-09-16 04:54:15
@article{b7cdf16d-f9c5-45a2-a02f-e61e64f2c296,
  abstract     = {<p>We show that a quantum Szilard engine containing many bosons with attractive interactions enhances the conversion between information and work. Using an ab initio approach to the full quantum-mechanical many-body problem, we find that the average work output increases significantly for a larger number of bosons. The highest overshoot occurs at a finite temperature, demonstrating how thermal and quantum effects conspire to enhance the conversion between information and work. The predicted effects occur over a broad range of interaction strengths and temperatures.</p>},
  articleno    = {100601},
  author       = {Bengtsson, J. and Tengstrand, M. Nilsson and Wacker, A. and Samuelsson, P. and Ueda, M. and Linke, H. and Reimann, S. M.},
  issn         = {0031-9007},
  language     = {eng},
  month        = {03},
  number       = {10},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Quantum Szilard Engine with Attractively Interacting Bosons},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.120.100601},
  volume       = {120},
  year         = {2018},
}