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arXiv 1612.01550hep-thcond-mat.stat-mechphysics.flu-dyn
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一阶伽利略超流体动力学

First Order Galilean Superfluid Dynamics

Nabamita Banerjee, Suvankar Dutta, Akash Jain

摘要:

我们研究(反常)伽利略超流体的动力学,直到一阶导数膨胀,奇偶偶和奇偶奇部门。我们构造了一个相对论性系统--零超流,它是一种全局$U(1)$对称性自发破缺的零流体(在[arXiv:1509.04718]中引入).零超流体与低维伽利略超流体一一对应,即它们具有相同的对称性、热力学、本构关系,并且仅仅通过基的选择而相互关联。对应是基于零约化,这是众所周知的减少庞加莱对称性的理论伽利略对称性在一个较低的维度。为了进行这种分析,我们使用(超)流体动力学的脱壳形式,适当地采用它来消除(超)流体。

英文摘要:

We study dynamics of (anomalous) Galilean superfluid up to first order in derivative expansion, both in parity-even and parity-odd sectors. We construct a relativistic system -- null superfluid, which is a null fluid (introduced in [arXiv:1509.04718]) with a spontaneously broken global $U(1)$ symmetry. A null superfluid is in one to one correspondence with Galilean superfluid in one lower dimension, i.e. they have same symmetries, thermodynamics, constitutive relations and are related to each other by a mere choice of basis. The correspondence is based on null reduction, which is known to reduce the Poincaré symmetry of a theory to Galilean symmetry in one lower dimension. To perform this analysis, we use offshell formalism of (super)fluid dynamics, adopting it appropriately to null (super)fluids.

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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