| Complementarity between micro-micro and micro-macro entanglement in a Bose–Einstein condensate with two Rydberg impurities |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grants Nos 11775075,11434011,and 11935006 |
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| 摘 要： | We theoretically study complementarity between micro-micro and micro-macro entanglement in a Bose–Einstein condensate with two Rydberg impurities. We investigate quantum dynamics of micro-micro and micro-macro entanglement in the micro-macro system. It is found that strong micro-macro entanglement between Rydberg impurities and the BEC can be generated by the use of initial micro-micro entanglement between two Rydberg impurities, which acts as the seed entanglement to create micro-macro entanglement. We demonstrate a curious complementarity relation between micro-micro and micro-macro entanglement, and find that the complementarity property can be sustained to some extent even though in the presence of the BEC decoherence.
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| 收稿时间： | 2019-10-04 |
Complementarity between micro-micro and micro-macro entanglement in a Bose-Einstein condensate with two Rydberg impurities |
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| Authors: | Zhen Li Yu Han Le-Man Kuang |
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| Institution: | Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China |
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| Abstract: | We theoretically study complementarity between micro-micro and micro-macro entanglement in a Bose–Einstein condensate with two Rydberg impurities. We investigate quantum dynamics of micro-micro and micro-macro entanglement in the micro-macro system. It is found that strong micro-macro entanglement between Rydberg impurities and the BEC can be generated by the use of initial micro-micro entanglement between two Rydberg impurities, which acts as the seed entanglement to create micro-macro entanglement. We demonstrate a curious complementarity relation between micro-micro and micro-macro entanglement, and find that the complementarity property can be sustained to some extent even though in the presence of the BEC decoherence. |
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| Keywords: | complementarity micro-macro entanglement micro-micro entanglement a Bose–Einstein condensate Rydberg impurities |
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