The Influences of Quantum Coherence on the Positive Work and the Efficiency of Quantum Heat Engine with Working Substance of Two-Qubit Heisenberg XXX Model

Autor:	Hu-Ping Peng, Hong-Mei Zou, Min Yu, Mao-Fa Fang
Rok vydání:	2018
Předmět:	Physics Physics and Astronomy (miscellaneous) Heisenberg model General Mathematics 01 natural sciences 010305 fluids & plasmas Magnetic field Quantum mechanics Qubit 0103 physical sciences 010306 general physics Quantum Coherence (physics) Heat engine
Zdroj:	International Journal of Theoretical Physics. 57:1872-1880
ISSN:	1572-9575 0020-7748
DOI:	10.1007/s10773-018-3712-8
Popis:	We study the influences of quantum coherence on the positive work and the efficiency of quantum heat engine (QHE) based on working substance of two-qubit Heisenberg model under a constant external magnetic field. By using analytical and numerical solution, we give the relation expressions for both the positive work and the efficiency with quantum coherence, and in detail discuss the effects of the quantum coherence on the positive work and the efficiency of QHE in the absence or presence of external magnetic field, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c02645d4c5a2cf796e1d59d2ef3554a https://doi.org/10.1007/s10773-018-3712-8 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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