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Title: Occurrence of discontinuities in the performance of finite-time quantum Otto cycles
Authors: Zheng, Yuanjian
Hänggi, Peter
Poletti, Dario
Keywords: Otto Cycle
Condensed Matter Physics
Issue Date: 2016
Source: 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
Series/Report no.: Physical Review E
Abstract: 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.
ISSN: 2470-0045
DOI: 10.1103/PhysRevE.94.012137
Schools: School of Physical and Mathematical Sciences 
Organisations: MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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