Occurrence of discontinuities in the performance of finite-time quantum Otto cycles

We study a quantum Otto cycle in which the strokes are performed in finite time. The cycle involves energy measurements at the end of each stroke to allow for the respective determination of work. We then optimize for the work and efficiency of the cycle by varying the time spent in the different st...

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Main Authors:	Zheng, Yuanjian, Hänggi, Peter, Poletti, Dario
Other Authors:	School of Physical and Mathematical Sciences
Format:	Article
Language:	English
Published:	2018
Subjects:	Otto Cycle DRNTU::Science::Physics Condensed Matter Physics
Online Access:	https://hdl.handle.net/10356/80440 http://hdl.handle.net/10220/46544
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Institution:	Nanyang Technological University
Language:	English

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spelling	sg-ntu-dr.10356-804402023-02-28T19:30:55Z Occurrence of discontinuities in the performance of finite-time quantum Otto cycles Zheng, Yuanjian Hänggi, Peter Poletti, Dario School of Physical and Mathematical Sciences MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit Otto Cycle DRNTU::Science::Physics Condensed Matter Physics We study a quantum Otto cycle in which the strokes are performed in finite time. The cycle involves energy measurements at the end of each stroke to allow for the respective determination of work. We then optimize for the work and efficiency of the cycle by varying the time spent in the different strokes and find that the optimal value of the ratio of time spent on each stroke goes through sudden changes as the parameters of this cycle vary continuously. The position of these discontinuities depends on the optimized quantity under consideration such as the net work output or the efficiency. MOE (Min. of Education, S’pore) Published version 2018-11-02T07:27:48Z 2019-12-06T13:49:29Z 2018-11-02T07:27:48Z 2019-12-06T13:49:29Z 2016 Journal Article Zheng, Y., Hänggi, P.,& Poletti, D. (2016). Occurrence of discontinuities in the performance of finite-time quantum Otto cycles. Physical Review E, 94(1), 012137-. doi:10.1103/PhysRevE.94.012137 2470-0045 https://hdl.handle.net/10356/80440 http://hdl.handle.net/10220/46544 10.1103/PhysRevE.94.012137 en Physical Review E © 2016 American Physical Society (APS). This paper was published in Physical Review E and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevE.94.012137]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 8 p. application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	Otto Cycle DRNTU::Science::Physics Condensed Matter Physics
spellingShingle	Otto Cycle DRNTU::Science::Physics Condensed Matter Physics Zheng, Yuanjian Hänggi, Peter Poletti, Dario Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
description	We study a quantum Otto cycle in which the strokes are performed in finite time. The cycle involves energy measurements at the end of each stroke to allow for the respective determination of work. We then optimize for the work and efficiency of the cycle by varying the time spent in the different strokes and find that the optimal value of the ratio of time spent on each stroke goes through sudden changes as the parameters of this cycle vary continuously. The position of these discontinuities depends on the optimized quantity under consideration such as the net work output or the efficiency.
author2	School of Physical and Mathematical Sciences
author_facet	School of Physical and Mathematical Sciences Zheng, Yuanjian Hänggi, Peter Poletti, Dario
format	Article
author	Zheng, Yuanjian Hänggi, Peter Poletti, Dario
author_sort	Zheng, Yuanjian
title	Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
title_short	Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
title_full	Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
title_fullStr	Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
title_full_unstemmed	Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
title_sort	occurrence of discontinuities in the performance of finite-time quantum otto cycles
publishDate	2018
url	https://hdl.handle.net/10356/80440 http://hdl.handle.net/10220/46544
_version_	1759855604125401088

Occurrence of discontinuities in the performance of finite-time quantum Otto cycles

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