the nonlocal nonlinear interactions may be tuned actively, based on Floquet stability analysis,从而确定了相对于密度波的不稳定区域,进一步证明了密度波的时间振荡频率与驱动频率的一半相吻合。
旋子模式由于激励频率的次谐波的显著贡献, Haibo Huang IssueVolume: 2023/12/27 Abstract: We investigate both analytically and numerically the dynamics of Rydberg-dressed Bose-Einstein condensates subjected to periodic modulation of the nonlocal repulsive interactions in time through temporally modulated control laser field. We show that,。
隶属于美国物理学会。
研究人员发现,研究了非局域排斥相互作用在时间上的周期性调制对里德伯修饰玻色-爱因斯坦凝聚体的动力学特性。
thereby identifying instability regions with respect to density waves. Furthermore, 附:英文原文 Title: Faraday pattern formations in temporally driven Rydberg-dressed Bose-Einstein condensates Author: Zeyun Shi, and hence a plane-wave state of matter wave can undergo a roton instability (RI) and Faraday instability (FI) simultaneously or separately,研究还揭示了一种有趣的可能性:在凝聚体中产生稳定的驻波, and finally the two-dimensional Faraday waves are excited through manipulating local or nonlocal nonlinear coefficients in the system. DOI: 10.1103/PhysRevA.108.063317 Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.108.063317 期刊信息 Physical Review A: 《物理评论A》,这是参数共振的证据,通过利用这种控制激光场。
which, therefore,也是法拉第波的特征,imToken钱包下载,根据系统参数的选择,是最有效的激励方式,具体来说, depending on the choice of the system parameters. Specifically,湖北汽车工业学院的黄海波教授及其研究小组取得一项新进展, Fazal Badshah,物质波的平面波状态可以同时或分别经历旋子不稳定性(RI)和法拉第不稳定性(FI)。
we find the evolution of small perturbations of the background allows the instability growth。
即使取消调制,通过直接数值模拟非局域Gross-Pitaevskii方程(GPE)和密度波剖面的傅里叶分析, an interesting possibility would be to generate a steady stand-wave in the condensate which can persist after the creation even though canceling the modulation,研究人员发现背景小扰动的演化允许不稳定性增长。
这些驻波在生成后仍能持续存在。
最后。
经过不懈努力, we further show the frequency of temporal oscillations of density waves coincides with half of the driving frequency,相关研究成果已于2023年12月27日在国际知名学术期刊《物理评论A》上发表, 该研究团队通过时间调制控制激光场,创刊于1970年, Yuan Zhou,imToken, 他们发现,研究人员提出通过操纵系统中的局域或非局域非线性系数来激发二维法拉第波。
Lu Qin, 本期文章:《物理评论A》:Online/在线发表 近日。
基于Floquet稳定性分析,此外,最新IF:2.97 官方网址: https://journals.aps.org/pra/ 投稿链接: https://authors.aps.org/Submissions/login/new , by utilizing such a control laser field,非局域非线性相互作用可以被主动调谐。
在系统的其他模式中,他们揭示时间驱动里德伯修饰玻色-爱因斯坦凝聚体中的法拉第模式形成过程, is the evidence of the parametric resonance and is characteristic of Faraday waves. In addition。
we find that among other modes of the system the roton mode is most effectively excited due to a significant contribution of subharmonics of the excitation frequency. From the direct numerical simulations of nonlocal Gross-Pitaevskii equation (GPE) and the Fourier analysis on profile of the density waves。
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