| 题名 | Unruh quantum Otto heat engine with level degeneracy |
| 作者 | |
| 通讯作者 | Xu，Hao |
| 发表日期 | 2020-02-10
|
| DOI | |
| 发表期刊 | |
| ISSN | 0370-2693
|
| EISSN | 1873-2445
|
| 卷号 | 801 |
| 摘要 | We investigate the Unruh quantum Otto heat engine with level degeneracy. An effectively two-level system, where the ground state is non-degenerate and the excited state is n-fold degenerate, is acting as the working substance, and the vacuum of massless free scalar field serves as a thermal bath via the Unruh effect. We calculate the heat and work at each step of the Unruh quantum Otto cycle and study the features of the heat engine. The efficiency of the heat engine depends only on the excited energy values of the two-level system, not on its level degeneracy. However, the degeneracy acts as a kind of thermodynamic resource and helps us to extract more work than in the non-degenerate case. The extractable work has a finite upper bound, corresponding to n→∞. |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 第一
; 通讯
|
| 资助项目 | Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS20170303165926217]
; Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20170412152620376]
; Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20170817105046702]
|
| WOS研究方向 | Astronomy & Astrophysics
; Physics
|
| WOS类目 | Astronomy & Astrophysics
; Physics, Nuclear
; Physics, Particles & Fields
|
| WOS记录号 | WOS:000508018500048
|
| 出版者 | |
| ESI学科分类 | PHYSICS
|
| Scopus记录号 | 2-s2.0-85077434393
|
| 来源库 | Scopus
|
| 引用统计 |
被引频次[WOS]：12
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/67920 |
| 专题 | 理学院_物理系 量子科学与工程研究院 |
| 作者单位 | 1.Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 2.Department of Physics,University of Science and Technology of China,Hefei,230026,China 3.Shenzhen Key Laboratory of Quantum Science and Engineering,Shenzhen,518055,China |
| 第一作者单位 | 物理系; 量子科学与工程研究院 |
| 通讯作者单位 | 物理系; 量子科学与工程研究院 |
| 第一作者的第一单位 | 物理系; 量子科学与工程研究院 |
| 推荐引用方式 GB/T 7714 |
Xu，Hao,Yung，Man Hong. Unruh quantum Otto heat engine with level degeneracy[J]. PHYSICS LETTERS B,2020,801.
|
| APA |
Xu，Hao,&Yung，Man Hong.(2020).Unruh quantum Otto heat engine with level degeneracy.PHYSICS LETTERS B,801.
|
| MLA |
Xu，Hao,et al."Unruh quantum Otto heat engine with level degeneracy".PHYSICS LETTERS B 801(2020).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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