Quantum Otto Heat Engine Using Polar Molecules in Pendular States
Quantum heat engines (QHEs) are established by applying the principles of quantum thermodynamics to small−scale systems, which leverage quantum effects to gain certain advantages. In this study, we investigate the quantum Otto cycle by employing the dipole−dipole coupled polar molecules as the worki...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/23/5617 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850106404308779008 |
|---|---|
| author | Xiang Li Zhaoxi Sun Yu-Yan Fang Xiao-Li Huang Xinning Huang Jin-Fang Li Zuo-Yuan Zhang Jin-Ming Liu |
| author_facet | Xiang Li Zhaoxi Sun Yu-Yan Fang Xiao-Li Huang Xinning Huang Jin-Fang Li Zuo-Yuan Zhang Jin-Ming Liu |
| author_sort | Xiang Li |
| collection | DOAJ |
| description | Quantum heat engines (QHEs) are established by applying the principles of quantum thermodynamics to small−scale systems, which leverage quantum effects to gain certain advantages. In this study, we investigate the quantum Otto cycle by employing the dipole−dipole coupled polar molecules as the working substance of QHE. Here, the molecules are considered to be trapped within an optical lattice and located in an external electric field. We analyze the work output and the efficiency of the quantum Otto heat engine (QOHE) as a function of various physical parameters, including electric field strength, dipole−dipole interaction and temperatures of heat baths. It is found that by adjusting these physical parameters the performance of the QOHE can be optimized effectively. Moreover, we also examine the influences of the entanglement and relative entropy of coherence for the polar molecules in thermal equilibrium states on the QOHE. Our results demonstrate the potential of polar molecules in achieving QHEs. |
| format | Article |
| id | doaj-art-6477b58b7ab04ce4983f686f1a72c8cb |
| institution | OA Journals |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-6477b58b7ab04ce4983f686f1a72c8cb2025-08-20T02:38:50ZengMDPI AGMolecules1420-30492024-11-012923561710.3390/molecules29235617Quantum Otto Heat Engine Using Polar Molecules in Pendular StatesXiang Li0Zhaoxi Sun1Yu-Yan Fang2Xiao-Li Huang3Xinning Huang4Jin-Fang Li5Zuo-Yuan Zhang6Jin-Ming Liu7College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaChangping Laboratory, Beijing 102206, ChinaState Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, ChinaDepartment of Physics, Liaoning Normal University, Dalian 116029, ChinaCollege of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaDepartment of Physics and Electronic Engineering, Xianyang Normal University, Xianyang 712000, ChinaCollege of Physical Science and Technology, Yangzhou University, Yangzhou 225009, ChinaState Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, ChinaQuantum heat engines (QHEs) are established by applying the principles of quantum thermodynamics to small−scale systems, which leverage quantum effects to gain certain advantages. In this study, we investigate the quantum Otto cycle by employing the dipole−dipole coupled polar molecules as the working substance of QHE. Here, the molecules are considered to be trapped within an optical lattice and located in an external electric field. We analyze the work output and the efficiency of the quantum Otto heat engine (QOHE) as a function of various physical parameters, including electric field strength, dipole−dipole interaction and temperatures of heat baths. It is found that by adjusting these physical parameters the performance of the QOHE can be optimized effectively. Moreover, we also examine the influences of the entanglement and relative entropy of coherence for the polar molecules in thermal equilibrium states on the QOHE. Our results demonstrate the potential of polar molecules in achieving QHEs.https://www.mdpi.com/1420-3049/29/23/5617polar moleculesquantum heat enginequantum entanglement |
| spellingShingle | Xiang Li Zhaoxi Sun Yu-Yan Fang Xiao-Li Huang Xinning Huang Jin-Fang Li Zuo-Yuan Zhang Jin-Ming Liu Quantum Otto Heat Engine Using Polar Molecules in Pendular States Molecules polar molecules quantum heat engine quantum entanglement |
| title | Quantum Otto Heat Engine Using Polar Molecules in Pendular States |
| title_full | Quantum Otto Heat Engine Using Polar Molecules in Pendular States |
| title_fullStr | Quantum Otto Heat Engine Using Polar Molecules in Pendular States |
| title_full_unstemmed | Quantum Otto Heat Engine Using Polar Molecules in Pendular States |
| title_short | Quantum Otto Heat Engine Using Polar Molecules in Pendular States |
| title_sort | quantum otto heat engine using polar molecules in pendular states |
| topic | polar molecules quantum heat engine quantum entanglement |
| url | https://www.mdpi.com/1420-3049/29/23/5617 |
| work_keys_str_mv | AT xiangli quantumottoheatengineusingpolarmoleculesinpendularstates AT zhaoxisun quantumottoheatengineusingpolarmoleculesinpendularstates AT yuyanfang quantumottoheatengineusingpolarmoleculesinpendularstates AT xiaolihuang quantumottoheatengineusingpolarmoleculesinpendularstates AT xinninghuang quantumottoheatengineusingpolarmoleculesinpendularstates AT jinfangli quantumottoheatengineusingpolarmoleculesinpendularstates AT zuoyuanzhang quantumottoheatengineusingpolarmoleculesinpendularstates AT jinmingliu quantumottoheatengineusingpolarmoleculesinpendularstates |