Title | ||
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Controlling quantum coherence of a two-component Bose-Einstein condensate via an impurity atom |
Abstract | ||
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We propose a scheme to control quantum coherence of a two-component Bose–Einstein condensate (BEC) by a single impurity atom immersed in the BEC. We show that the single impurity atom can act as a single-atom valve (SAV) to control quantum coherence of the two-component BEC. It is demonstrated that the SAV can realize the on-demand control over quantum coherence at an arbitrary time. Specially, it is found that the SAV can also control higher-order quantum coherence of two-component BEC. We investigate the long-time evolution of quantum coherence of the two-component BEC and find that collapse–revival patterns of quantum coherence can be manipulated by the initial-state parameters of the impurity atom and the impurity–BEC interaction strengths. |
Year | DOI | Venue |
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2020 | 10.1007/s11128-020-02689-3 | Quantum Information Processing |
Keywords | DocType | Volume |
Quantum coherence, Bose–Einstein condensate, The impurity atom, The single-atom valve | Journal | 19 |
Issue | ISSN | Citations |
6 | 1570-0755 | 1 |
PageRank | References | Authors |
0.48 | 0 | 2 |
Name | Order | Citations | PageRank |
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Li Zhen | 1 | 1 | 0.48 |
Le-Man Kuang | 2 | 2 | 2.80 |