arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1207.3449cond-mat.quant-gas
收藏

环状玻色混合物中的持续电流

Persistent currents in a bosonic mixture in the ring geometry

K. Anoshkin, Z. Wu, E. Zaremba

摘要:

在本文中,我们分析了一维环几何中两种玻色子混合物持续电流的可能性。我们扩展了Bloch所使用的参数,得到了两种群系统持续电流稳定性的判据。如果两种物质的质量比是有理数,持续电流可以稳定在某个总角动量的倍数。我们表明,布洛赫准则也可以被看作是一个朗道准则涉及的基本激发系统。我们的分析表明,在较高的角动量的持续电流是更稳定的两种系统比以前认为的。

英文摘要:

In this paper we analyze the possibility of persistent currents of a two-species bosonic mixture in the one-dimensional ring geometry. We extend the arguments used by Bloch to obtain a criterion for the stability of persistent currents for the two-species system. If the mass ratio of the two species is a rational number, persistent currents can be stable at multiples of a certain total angular momenta. We show that the Bloch criterion can also be viewed as a Landau criterion involving the elementary excitations of the system. Our analysis reveals that persistent currents at higher angular momenta are more stable for the two-species system than previously thought.

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。

↑