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Quantum Squeezing of Matter-Wave Solitons in Bose–Einstein Condensates |
| Jinzhong Zhu1 and Guoxiang Huang1,2,3* |
1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
2NYU-ECNU Joint Institute of Physics, New York University Shanghai, Shanghai 200062, China
3Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
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| Cite this article: |
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Jinzhong Zhu and Guoxiang Huang 2023 Chin. Phys. Lett. 40 100504 |
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Abstract We investigate the quantum squeezing of matter-wave solitons in atomic Bose–Einstein condensates. By calculating quantum fluctuations of the solitons via solving the Bogoliubov–de Gennes equations, we show that significant quantum squeezing can be realized for both bright and dark solitons. We also show that the squeezing efficiency of the solitons can be enhanced and manipulated by atom–atom interaction and soliton blackness. The results reported here are beneficial not only for understanding quantum property of matter-wave solitons, but also for promising applications of Bose-condensed quantum gases.
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Received: 10 July 2023
Published: 26 September 2023
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