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arXiv 2106.09604cond-mat.quant-gas
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一维格点中参数驱动凝聚体的粒子发射

Emission of particles from a parametrically driven condensate in a one-dimensional lattice

L. Q. Lai, Y. B. Yu, Erich J. Mueller

摘要:

受最近实验的启发,我们计算了当相互作用强度被调制时,囚禁在一维晶格单深阱中的玻色-爱因斯坦凝聚体的粒子发射。除了对发射,这已被广泛研究,我们观察到单粒子发射。在线性响应中,我们能够写出单粒子发射率的封闭形式表达式,并将对发射率减少到一维积分。将单粒子发射的全非线性理论简化为一个单变量积分微分方程,并进行数值求解。

英文摘要:

Motivated by recent experiments, we calculate particle emission from a Bose-Einstein condensate trapped in a single deep well of a one-dimensional lattice when the interaction strength is modulated. In addition to pair emission, which has been widely studied, we observe single-particle emission. Within linear response, we are able to write closed-form expressions for the single-particle emission rates and reduce the pair emission rates to one-dimensional integrals. The full nonlinear theory of single-particle emission is reduced to a single variable integrodifferential equation, which we numerically solve.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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