论文标题
p-波超流量气体的强相互作用状态中的剪切粘度
Shear Viscosity in the Strong Interaction Regime of a p-wave Superfluid Fermi Gas
论文作者
论文摘要
$ p $ - 波超流体状态是一种有前途的自旋三翼和非$ s $ - 波配对状态，处于超低费米汽油中。在这项工作中，我们通过Kubo形式主义研究了一个单组分$ p $ - 波粉的超流量费米气体的低温剪切粘度。我们的研究以强耦合极限进行，其中费米超流量减少到复合玻色子系统中。考虑到$ {{p} _ {x}} $ - 自我能源中的Wave Cooper Channel，确定了粘性放松率。与这些相互作用相关的放松率是根据温度的函数计算的。它们的温度依赖性不同于$ S $ Wave超流体费米气体，这是由于$ p $ - 波超氟中的各向异性配对相互作用所致。我们的结果有助于了解这种各向异性如何影响这种非常规超流体费米气体在低温极限下的运输特性。
The $p$-wave superfluid state is a promising spin-triplet and non $s$-wave pairing state in an ultracold Fermi gas. In this work we study the low-temperature shear viscosity of a one-component $p$-wave superfluid Fermi gas, by means of Kubo formalism. Our study is done in the strong-coupling limit where Fermi superfluid reduces into a system of composite bosons. Taking into account ${{p}_{x}}$-wave Cooper channel in the self-energy, the viscous relaxation rates are determined. The relaxation rates related to these interactions are calculated as a function of temperature. Their temperature dependence is different from the $s$-wave superfluid Fermi gas, and this is due to the anisotropic pairing interaction in the $p$-wave superfluid. Our results contribute to understand how this anisotropy affects transport properties of this unconventional superfluid Fermi gas in low temperature limit.
