Nonequilibrium quantum battery based on quantum measurements
We propose and analyze the charging and discharging processes of measurement-assisted quant um batteries, exploring how different measurement schemes affect their performance. It is found that applying projective measurements with a general basis and optimizing the measurement parameters can enhance...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013151 |
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| _version_ | 1849717749273591808 |
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| author | Jianying Du Yanjiang Guo Baowen Li |
| author_facet | Jianying Du Yanjiang Guo Baowen Li |
| author_sort | Jianying Du |
| collection | DOAJ |
| description | We propose and analyze the charging and discharging processes of measurement-assisted quant um batteries, exploring how different measurement schemes affect their performance. It is found that applying projective measurements with a general basis and optimizing the measurement parameters can enhance the battery's performance, including increases in both charging energy and ergotropy. Compared to local measurement schemes, the quantum battery exhibits significantly improved performance under nonlocal measurement schemes. However, this performance improvement comes at the cost of higher resource expenditure in nonlocal schemes. Additionally, the quantum battery can function as a quantum energy source, driving the qubit-resonator system to facilitate energy pumping. Our findings provide deeper insights into the fundamental properties of quantum batteries driven by quantum measurements, offering a pathway toward the design of more efficient and controllable quantum battery systems. |
| format | Article |
| id | doaj-art-8d67f602bf8a4518a4a724c455c216c2 |
| institution | DOAJ |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-8d67f602bf8a4518a4a724c455c216c22025-08-20T03:12:35ZengAmerican Physical SocietyPhysical Review Research2643-15642025-02-017101315110.1103/PhysRevResearch.7.013151Nonequilibrium quantum battery based on quantum measurementsJianying DuYanjiang GuoBaowen LiWe propose and analyze the charging and discharging processes of measurement-assisted quant um batteries, exploring how different measurement schemes affect their performance. It is found that applying projective measurements with a general basis and optimizing the measurement parameters can enhance the battery's performance, including increases in both charging energy and ergotropy. Compared to local measurement schemes, the quantum battery exhibits significantly improved performance under nonlocal measurement schemes. However, this performance improvement comes at the cost of higher resource expenditure in nonlocal schemes. Additionally, the quantum battery can function as a quantum energy source, driving the qubit-resonator system to facilitate energy pumping. Our findings provide deeper insights into the fundamental properties of quantum batteries driven by quantum measurements, offering a pathway toward the design of more efficient and controllable quantum battery systems.http://doi.org/10.1103/PhysRevResearch.7.013151 |
| spellingShingle | Jianying Du Yanjiang Guo Baowen Li Nonequilibrium quantum battery based on quantum measurements Physical Review Research |
| title | Nonequilibrium quantum battery based on quantum measurements |
| title_full | Nonequilibrium quantum battery based on quantum measurements |
| title_fullStr | Nonequilibrium quantum battery based on quantum measurements |
| title_full_unstemmed | Nonequilibrium quantum battery based on quantum measurements |
| title_short | Nonequilibrium quantum battery based on quantum measurements |
| title_sort | nonequilibrium quantum battery based on quantum measurements |
| url | http://doi.org/10.1103/PhysRevResearch.7.013151 |
| work_keys_str_mv | AT jianyingdu nonequilibriumquantumbatterybasedonquantummeasurements AT yanjiangguo nonequilibriumquantumbatterybasedonquantummeasurements AT baowenli nonequilibriumquantumbatterybasedonquantummeasurements |