Quantum speedup dynamics process in Schwarzschild space–time
Quantum speed limit time (QSLT) can be used to characterize the intrinsic minimal time interval for a quantum system evolving from an initial state to a target state. We investigate the QSLT of the open system in Schwarzschild space–time. We show that, in some typical noisy channels, the Hawking eff...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379722000742 |
| _version_ | 1818774468043997184 |
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| author | Xu Kai Han-Jie Zhu Guo-Feng Zhang Jie-Ci Wang Wu-Ming Liu |
| author_facet | Xu Kai Han-Jie Zhu Guo-Feng Zhang Jie-Ci Wang Wu-Ming Liu |
| author_sort | Xu Kai |
| collection | DOAJ |
| description | Quantum speed limit time (QSLT) can be used to characterize the intrinsic minimal time interval for a quantum system evolving from an initial state to a target state. We investigate the QSLT of the open system in Schwarzschild space–time. We show that, in some typical noisy channels, the Hawking effect can accelerate the evolution of the system. For an initial entangled state, the evolution speed of the system can be enhanced in the depolarizing, bit flip, and bit-phase flip channels as the Hawking temperature increases, which are in sharp contrast to the phase flip channel. Moreover, the optimal initial entanglement exists in other noise channels except the phase flip channel, which minimizes the QSLT of the system and thus leads to the maximum evolution speed of the system. |
| first_indexed | 2024-12-18T10:41:37Z |
| format | Article |
| id | doaj.art-8daf97bf46504f488eec3e6fc62538ae |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-18T10:41:37Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-8daf97bf46504f488eec3e6fc62538ae2022-12-21T21:10:37ZengElsevierResults in Physics2211-37972022-04-0135105278Quantum speedup dynamics process in Schwarzschild space–timeXu Kai0Han-Jie Zhu1Guo-Feng Zhang2Jie-Ci Wang3Wu-Ming Liu4School of Science, Tianjin University of Technology, Tianjin 300384, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaSchool of Physics, Beihang University, Beijing 100191, China; Corresponding author.Department of Physics and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha, Hunan 410081, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China; Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, ChinaQuantum speed limit time (QSLT) can be used to characterize the intrinsic minimal time interval for a quantum system evolving from an initial state to a target state. We investigate the QSLT of the open system in Schwarzschild space–time. We show that, in some typical noisy channels, the Hawking effect can accelerate the evolution of the system. For an initial entangled state, the evolution speed of the system can be enhanced in the depolarizing, bit flip, and bit-phase flip channels as the Hawking temperature increases, which are in sharp contrast to the phase flip channel. Moreover, the optimal initial entanglement exists in other noise channels except the phase flip channel, which minimizes the QSLT of the system and thus leads to the maximum evolution speed of the system.http://www.sciencedirect.com/science/article/pii/S2211379722000742Quantum speedupQuantum speed limit time |
| spellingShingle | Xu Kai Han-Jie Zhu Guo-Feng Zhang Jie-Ci Wang Wu-Ming Liu Quantum speedup dynamics process in Schwarzschild space–time Results in Physics Quantum speedup Quantum speed limit time |
| title | Quantum speedup dynamics process in Schwarzschild space–time |
| title_full | Quantum speedup dynamics process in Schwarzschild space–time |
| title_fullStr | Quantum speedup dynamics process in Schwarzschild space–time |
| title_full_unstemmed | Quantum speedup dynamics process in Schwarzschild space–time |
| title_short | Quantum speedup dynamics process in Schwarzschild space–time |
| title_sort | quantum speedup dynamics process in schwarzschild space time |
| topic | Quantum speedup Quantum speed limit time |
| url | http://www.sciencedirect.com/science/article/pii/S2211379722000742 |
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