Special coupled quantum Otto and Carnot cycles

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dc.authorid0000-0002-5182-374Xen_US
dc.authorid0000-0002-1284-0870en_US
dc.authorid0000-0003-2753-7396
dc.contributor.authorÇakmak, Selçuk
dc.contributor.authorTürkpençe, Deniz
dc.contributor.authorAltıntaş, Ferdi
dc.date.accessioned2021-06-23T19:44:58Z
dc.date.available2021-06-23T19:44:58Z
dc.date.issued2017
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractTwo special coupled spins, one is an arbitrary spin-s and the other is a fixed spin-1/2, are proposed as the working substance of the quantum Otto and Carnot cycles. The quantum adiabatic stages of the cycles are considered the simultaneous changes of the frequencies of the spins and the interaction strength in which all the energy gaps of the working substance are changed by the same ratios in the two quantum adiabatic stages. The role of quantum interactions and the spin-s on the performance of the quantum cycles is investigated in detail. It is found that the thermal efficiencies of the cycles are independent of the spin-s and the interaction strength and are also equivalent to their classical counterparts. The work output of the cycles is found to be significantly enhanced by the quantum interactions. Compared to the uncoupled case, the coupled working substance with a smaller spin-s is found to produce more useful work in the weak coupling regime, while the harvested work with a smaller spin-s is less in the strong coupling regime. The concept of local thermodynamics and the role of inner friction are also addressed for the proposed quantum Otto and Carnot cycles.en_US
dc.identifier.doi10.1140/epjp/i2017-11811-3
dc.identifier.issn2190-5444
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85040061779en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1140/epjp/i2017-11811-3
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9076
dc.identifier.volume132en_US
dc.identifier.wosWOS:000419325400003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAltıntaş, Ferdi
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofEuropean Physical Journal Plusen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectQuantum Ottoen_US
dc.subjectCarnot Cycles
dc.subjectQuantum
dc.titleSpecial coupled quantum Otto and Carnot cyclesen_US
dc.typeArticleen_US

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