Constructing an entangled Unruh Otto engine and its efficiency
Abstract Uniformly accelerated frame mimics a thermal bath whose temperature is proportional to the proper acceleration. Using this phenomenon we give a detailed construction of an Otto cycle between two energy eigenstates of a system, consists of two entangled qubits. In the isochoric stages the th...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2022)046 |
| _version_ | 1817988234581377024 |
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| author | Dipankar Barman Bibhas Ranjan Majhi |
| author_facet | Dipankar Barman Bibhas Ranjan Majhi |
| author_sort | Dipankar Barman |
| collection | DOAJ |
| description | Abstract Uniformly accelerated frame mimics a thermal bath whose temperature is proportional to the proper acceleration. Using this phenomenon we give a detailed construction of an Otto cycle between two energy eigenstates of a system, consists of two entangled qubits. In the isochoric stages the thermal bath is being provided via the vacuum fluctuations of the background field for a monopole interaction by accelerating them. We find that making of Otto cycle is possible when one qubit is accelerating in the right Rindler wedge and other one is moving in the left Rindler wedge; i.e. in anti-parallel motion, with the initial composite state is a non-maximally entangled one. However, the efficiency greater than that of the usual single qubit quantum Otto engine is not possible. We provide values of the available parameters which make Otto cycle possible. On the other hand, Otto cycle is not possible if one considers the non-maximally entangled state for parallel motion. Moreover, for both initial symmetric and anti-symmetric Bell states we do not find any possibility of the cycle for qubits’ parallel and anti-parallel motion. |
| first_indexed | 2024-04-14T00:32:45Z |
| format | Article |
| id | doaj.art-0a79e06d3fee4f56bf1f9cfc1e14af92 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-14T00:32:45Z |
| publishDate | 2022-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-0a79e06d3fee4f56bf1f9cfc1e14af922022-12-22T02:22:30ZengSpringerOpenJournal of High Energy Physics1029-84792022-05-012022514410.1007/JHEP05(2022)046Constructing an entangled Unruh Otto engine and its efficiencyDipankar Barman0Bibhas Ranjan Majhi1Department of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiAbstract Uniformly accelerated frame mimics a thermal bath whose temperature is proportional to the proper acceleration. Using this phenomenon we give a detailed construction of an Otto cycle between two energy eigenstates of a system, consists of two entangled qubits. In the isochoric stages the thermal bath is being provided via the vacuum fluctuations of the background field for a monopole interaction by accelerating them. We find that making of Otto cycle is possible when one qubit is accelerating in the right Rindler wedge and other one is moving in the left Rindler wedge; i.e. in anti-parallel motion, with the initial composite state is a non-maximally entangled one. However, the efficiency greater than that of the usual single qubit quantum Otto engine is not possible. We provide values of the available parameters which make Otto cycle possible. On the other hand, Otto cycle is not possible if one considers the non-maximally entangled state for parallel motion. Moreover, for both initial symmetric and anti-symmetric Bell states we do not find any possibility of the cycle for qubits’ parallel and anti-parallel motion.https://doi.org/10.1007/JHEP05(2022)046Black HolesThermal Field Theory |
| spellingShingle | Dipankar Barman Bibhas Ranjan Majhi Constructing an entangled Unruh Otto engine and its efficiency Journal of High Energy Physics Black Holes Thermal Field Theory |
| title | Constructing an entangled Unruh Otto engine and its efficiency |
| title_full | Constructing an entangled Unruh Otto engine and its efficiency |
| title_fullStr | Constructing an entangled Unruh Otto engine and its efficiency |
| title_full_unstemmed | Constructing an entangled Unruh Otto engine and its efficiency |
| title_short | Constructing an entangled Unruh Otto engine and its efficiency |
| title_sort | constructing an entangled unruh otto engine and its efficiency |
| topic | Black Holes Thermal Field Theory |
| url | https://doi.org/10.1007/JHEP05(2022)046 |
| work_keys_str_mv | AT dipankarbarman constructinganentangledunruhottoengineanditsefficiency AT bibhasranjanmajhi constructinganentangledunruhottoengineanditsefficiency |