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arXiv 1405.6771cond-mat.quant-gas
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量子混合体系中零点涨落引起的关联自发对称性破缺

Correlated spontaneous symmetry breaking induced by zero-point fluctuations in a quantum mixture

Li Ge, Fei Zhou, Yu Shi

摘要:

我们提出了一种由零点量子涨落驱动的自发对称性破缺形式。具体来说,我们考虑两种自旋$1$玻色气体混合物的低能动力学。结果表明,量子涨落解除了两个物种的自旋指向矢的相对取向的简并,并导致这些宏观变量之间的相关或锁定。这种锁定持续存在的捕获势和弱磁场,允许,在原则上,实验探测这种相关的自发对称性破缺,作为一个宏观表现的零点量子涨落。

英文摘要:

We propose a form of spontaneous symmetry breaking driven by zero-point quantum fluctuations. To be specific, we consider the low-energy dynamics of a mixture of two species of spin-$1$ Bose gases. It is demonstrated that the quantum fluctuations lift a degeneracy regarding the relative orientations of the spin directors of the two species, and result in correlation or locking between these macroscopic variables. This locking persists in the presence of the trapping potential and weak magnetic fields, allowing, in principle, an experimental probe of this correlated spontaneous symmetry breaking, as a macroscopic manifestation of zero-point quantum fluctuations.

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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