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arXiv 1702.07533cond-mat.quant-gas
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相干耦合双组分原子凝聚体中的黑洞激光

Black-hole lasing in coherently coupled two-component atomic condensates

Salvatore Butera, Patrik Öhberg, Iacopo Carusotto

摘要:

本文从理论上研究了一维流动、相干耦合的两组分原子玻色-爱因斯坦凝聚体中的黑洞激光现象。我们通过数值分析表明,一旦在这个分支中创建了一个有限的超音速区域,在自旋分支的激励的动力学不稳定性的发病。我们研究了空间均匀几何和谐波捕获凝聚。实验优势的两个组件的配置指出,着眼于对反反应现象的研究。

英文摘要:

We theoretically study the black-hole lasing phenomenon in a flowing one-dimensional, coherently coupled two component atomic Bose-Einstein condensate whose constituent atoms interact via a spin-dependent s-wave contact interaction. We show by a numerical analysis the onset of the dynamical instability in the spin branch of the excitations, once a finite supersonic region is created in this branch. We study both a spatially homogeneous geometry and a harmonically trapped condensate. Experimental advantages of the two-component configuration are pointed out, with an eye towards studies of back-reaction phenomena.

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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