Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

doi:10.1088/1674-1056/ad1172

中国物理B ›› 2024, Vol. 33 ›› Issue (3): 30308-030308.doi: 10.1088/1674-1056/ad1172

Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

Long-Quan Lai(赖龙泉)^1,† and Zhao Li(李照)^2,‡

1 School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
2 School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, China

收稿日期:2023-08-24 修回日期:2023-11-03 接受日期:2023-12-01 出版日期:2024-02-22 发布日期:2024-02-29
通讯作者: Long-Quan Lai, Zhao Li E-mail:lqlai@njupt.edu.cn;leezhao@hnu.edu.cn
基金资助:
Project supported by the China Scholarship Council (Grant No. 201906130092), the Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications (Grant No. NY223065), and the Natural Science Foundation of Sichuan Province (Grant No. 2023NSFSC1330).

Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

Long-Quan Lai(赖龙泉)^1,† and Zhao Li(李照)^2,‡

1 School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
2 School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, China

Received:2023-08-24 Revised:2023-11-03 Accepted:2023-12-01 Online:2024-02-22 Published:2024-02-29
Contact: Long-Quan Lai, Zhao Li E-mail:lqlai@njupt.edu.cn;leezhao@hnu.edu.cn
Supported by:
Project supported by the China Scholarship Council (Grant No. 201906130092), the Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications (Grant No. NY223065), and the Natural Science Foundation of Sichuan Province (Grant No. 2023NSFSC1330).

摘要/Abstract

摘要： Time-periodic driving has been an effective tool in the field of nonequilibrium quantum dynamics, which enables precise control of the particle interactions. We investigate the collective emission of particles from a Bose-Einstein condensate in a one-dimensional lattice with periodic drives that are separate in modulation amplitudes and relative phases. In addition to the enhancement of particle emission, we find that amplitude imbalances lead to energy shift and band broadening, while typical relative phases may give rise to similar gaps. These results offer insights into the specific manipulations of nonequilibrium quantum systems with tone-varying drives.

关键词: Bose-Einstein condensate, particle emission, periodic drive

Abstract: Time-periodic driving has been an effective tool in the field of nonequilibrium quantum dynamics, which enables precise control of the particle interactions. We investigate the collective emission of particles from a Bose-Einstein condensate in a one-dimensional lattice with periodic drives that are separate in modulation amplitudes and relative phases. In addition to the enhancement of particle emission, we find that amplitude imbalances lead to energy shift and band broadening, while typical relative phases may give rise to similar gaps. These results offer insights into the specific manipulations of nonequilibrium quantum systems with tone-varying drives.

Key words: Bose-Einstein condensate, particle emission, periodic drive

中图分类号: (Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)

03.75.Kk

03.75.Nt (Other Bose-Einstein condensation phenomena) 05.30.Jp (Boson systems)

Long-Quan Lai(赖龙泉) and Zhao Li(李照). Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice[J]. 中国物理B, 2024, 33(3): 30308-030308.

Long-Quan Lai(赖龙泉) and Zhao Li(李照). Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice[J]. Chin. Phys. B, 2024, 33(3): 30308-030308.

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Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

Effects of drive imbalance on the particle emission from a Bose-Einstein condensate in a one-dimensional lattice

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