Quantum correlated heat engine with spin squeezing
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| Název: | Quantum correlated heat engine with spin squeezing |
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| Autoři: | Altıntaş, Ferdi, Hardal, Ali Ümit Cemal, Müstecaplıoğlu, Özgür Esat |
| Přispěvatelé: | Bolu Abant İzzet Baysal University Institutional Repository, Hardal, Ali Ü., Müstecaplıoğlu, Özgür Esat (ORCID 0000-0002-9134-3951 & YÖK ID 1674), Altıntaş, Ferdi, Graduate School of Sciences and Engineering, College of Sciences, Department of Physics |
| Zdroj: | Physical Review E |
| Informace o vydavateli: | American Physical Society (APS), 2014. |
| Rok vydání: | 2014 |
| Témata: | States, Hot Temperature, Physics, Entanglement, Fluids and plasmas, 7. Clean energy, 01 natural sciences, Magnetic Fields, Nonlinear Dynamics, Mathematical physics, 0103 physical sciences, Quantum Theory |
| Popis: | We propose a four-level quantum heat engine in an Otto cycle with a working substance of two spins subject to an external magnetic field and coupled to each other by a one-axis twisting spin squeezing nonlinear interaction. We calculate the positive work and the efficiency of the engine for different parameter regimes. In particular, we investigate the effects of quantum correlations at the end of the two isochoric processes of the Otto cycle, as measured by the entanglement of formation and quantum discord, on the work extraction and efficiency. The regimes where the quantum correlations could enhance the efficiency and work extraction are characterized. |
| Druh dokumentu: | Article |
| Popis souboru: | |
| Jazyk: | English |
| ISSN: | 1550-2376 1539-3755 |
| DOI: | 10.1103/physreve.90.032102 |
| Přístupová URL adresa: | https://cdm21054.contentdm.oclc.org/digital/api/collection/IR/id/1204/download https://pubmed.ncbi.nlm.nih.gov/25314390 https://europepmc.org/article/MED/25314390 http://ui.adsabs.harvard.edu/abs/2014PhRvE..90c2102A/abstract https://www.ncbi.nlm.nih.gov/pubmed/25314390 https://link.aps.org/doi/10.1103/PhysRevE.90.032102 https://arxiv.org/abs/1403.2781 https://128.84.21.199/abs/1403.2781 https://hdl.handle.net/20.500.12491/7806 https://doi.org/10.1103/physreve.90.032102 http://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/1204 |
| Rights: | APS Licenses for Journal Article Re-use |
| Přístupové číslo: | edsair.doi.dedup.....8bdf5ca5a782ac391f7c0edb5abef216 |
| Databáze: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstrakt: | We propose a four-level quantum heat engine in an Otto cycle with a working substance of two spins subject to an external magnetic field and coupled to each other by a one-axis twisting spin squeezing nonlinear interaction. We calculate the positive work and the efficiency of the engine for different parameter regimes. In particular, we investigate the effects of quantum correlations at the end of the two isochoric processes of the Otto cycle, as measured by the entanglement of formation and quantum discord, on the work extraction and efficiency. The regimes where the quantum correlations could enhance the efficiency and work extraction are characterized. |
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| ISSN: | 15502376 15393755 |
| DOI: | 10.1103/physreve.90.032102 |