Interference-induced suppression of particle emission from a Bose-Einstein condensate in lattice with time-periodic modulations

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外文摘要：Emission of matter-wave jets from a parametrically driven condensate has attracted significant experimental and theoretical attention due to the appealing visual effects and potential metrological applications.In this work,we investigate the collective particle emission from a Bose-Einstein condensate confined in a one-dimensional lattice with periodically modulated interparticle interactions.We give the regimes for discrete modes,and find that the emission can be distinctly suppressed.The configuration induces a broad band,but few particles are ejected due to the interference of the matter waves.We further qualitatively model the emission process and demonstrate the short-time behaviors.This engineering provides a way to manipulate the propagation of particles and the corresponding dynamics of condensates in lattices,and may find application in the dynamical excitation control of other nonequilibrium problems with time-periodic driving.

外文关键词：

Bose-Einstein condensatematter-wave jetperiodic modulation

作者：

赖龙泉、李照

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作者单位：

School of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

School of Electronic Engineering,Chengdu Technological University,Chengdu 611730,China

基金：

China Scholarship CouncilNatural Science Research Startup Foundation of Recruiting Talents of Nanjing University of Posts and TelecommunicationsNatural Science Foundation of Sichuan Province

项目编号：

201906130092NY2230652023NSFSC1330

出版年：

2024

DOI：

10.1088/1674-1056/ad607b

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(10)