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Quantum coherence has been demonstrated in various systems including organic solar cells and solid state devices. In this article, we report the lower and upper bounds for the performance of quantum heat engines determined by the efficiency at maximum power. Our prediction based on the canonical three-level Scovil and Schulz-Dubois maser model strongly depends on the ratio of system-bath couplings for the hot and cold baths and recovers the theoretical bounds established previously for the Carnot engine. Further, introducing a fourth level to the maser model can enhance the maximal power and its efficiency, thus demonstrating the importance of quantum coherence in the thermodynamics and operation of the heat engines beyond the classical limit.

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Autor(es)

Dorfman, Konstantin E. -  Xu, Dazhi -  Cao, Jianshu - 

Id.: 71215068

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  http://purl.org/eprint/type/JournalArticle  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] American Physical Society
[References] http://dx.doi.org/10.1103/PhysRevE.97.042120
[References] Physical Review E

Fecha de contribución: 15-abr-2018

Contacto:

Localización:
* 2470-0045
* 2470-0053
* Dorfman, Konstantin E. et al. "Efficiency at maximum power of a laser quantum heat engine enhanced by noise-induced coherence." Physical Review E 97, 4 (April 2018): 042120 © 2018 American Physical Society
* PUBLISHER_POLICY

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