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arXiv 1509.02065cond-mat.quant-gas
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光晶格中的三维Gross-Pitaevskii孤波:晶格振动诱导的四次动能稳定化

Three-dimensional Gross-Pitaevskii solitary waves in optical lattices: stabilization using the artificial quartic kinetic energy induced by lattice shaking

M. Olshanii, S. Choi, V. Dunjko, A. E. Feiguin, H. Perrin, J. Ruhl, D. Aveline

摘要:

在这封信中,我们表明,一个三维玻色-爱因斯坦孤立波可以成为稳定的,如果色散规律从二次到四次。提出了一种利用振动光晶格实现四次色散的方法。估计表明,由此产生的孤立波可以在三个方向中的每一个方向上占据少至$\sim 1/20$ -th的布里渊区,并且包含多达$N = 10^{3}$原子,因此代表\textit{fully mobile}宏观三维物体。

英文摘要:

In this Letter, we show that a three-dimensional Bose-Einstein solitary wave can become stable if the dispersion law is changed from quadratic to quartic. We suggest a way to realize the quartic dispersion, using shaken optical lattices. Estimates show that the resulting solitary waves can occupy as little as $\sim 1/20$-th of the Brillouin zone in each of the three directions and contain as many as $N = 10^{3}$ atoms, thus representing a \textit{fully mobile} macroscopic three-dimensional object.

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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