Entropy 2014, 16(6), 3471-3481; doi:10.3390/e16063471
Letter

Application of the Generalized Work Relation for an N-level Quantum System

1email, 1email, 1,2,* email and 3email
Received: 21 April 2014; in revised form: 12 June 2014 / Accepted: 19 June 2014 / Published: 23 June 2014
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: An efficient periodic operation to obtain the maximum work from a nonequilibrium initial state in an N–level quantum system is shown. Each cycle consists of a stabilization process followed by an isentropic restoration process. The instantaneous time limit can be taken in the stabilization process from the nonequilibrium initial state to a stable passive state. In the restoration process that preserves the passive state a minimum period is needed to satisfy the uncertainty relation between energy and time. An efficient quantum feedback control in a symmetric two–level quantum system connected to an energy source is proposed.
Keywords: nonequilibrium thermodynamics; maximum work; generalized work relation; generalized second law
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MDPI and ACS Style

Ishikawa, J.; Takara, K.; Hasegawa, H.-H.; Driebe, D.J. Application of the Generalized Work Relation for an N-level Quantum System. Entropy 2014, 16, 3471-3481.

AMA Style

Ishikawa J, Takara K, Hasegawa H-H, Driebe DJ. Application of the Generalized Work Relation for an N-level Quantum System. Entropy. 2014; 16(6):3471-3481.

Chicago/Turabian Style

Ishikawa, Junichi; Takara, Kazuma; Hasegawa, Hiroshi-H.; Driebe, Dean J. 2014. "Application of the Generalized Work Relation for an N-level Quantum System." Entropy 16, no. 6: 3471-3481.


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