论文标题
对作用于量化涡流的流体动力定理的kutta-joukowski定理的概括
Generalization of the Kutta-Joukowski theorem for the hydrodynamic forces acting on a quantized vortex
论文作者
论文摘要
长期以来，在超氟中作用于量化涡流的流体动力一直是一个高度争议的问题。提出了一种新方法，最初是在紧凑型恒星的天体物理环境中开发的，以确定这些力，通过考虑远离Landau-Khalatnikov框架远离涡流的该地区的渐近均匀流动的小扰动。因此，专注于赫尔姆霍兹分解中流的无缘部分，从普通流体动力学中的经典kutta-joukowski定理被推广到超流体系统。采用相同的方法来预测作用于冷原子冷凝物和超流体混合物中的涡旋上的流体动力。
The hydrodynamic forces acting on a quantized vortex in a superfluid have long been a highly controversial issue. A new approach, originally developed in the astrophysical context of compact stars, is presented to determine these forces by considering small perturbations of the asymptotically uniform flows in the region far from the vortex in the framework of Landau-Khalatnikov two-fluid model. Focusing on the irrotational part of the flows in the Helmholtz decomposition, the classical Kutta-Joukowski theorem from ordinary hydrodynamics is thus generalized to superfluid systems. The same method is applied to predict the hydrodynamic forces acting on vortices in cold atomic condensates and superfluid mixtures.
