We study the topological structure of the vortex system in a superfiuid film. Explicit expressions for the vortex density and velocity field as functions of the
We propose a new simulation computational method to solve the reduced BCS Hamiltonian based on spin analogy and submatrix diagonalization. Then we further apply
The concept of femoroacetabular impingement ( FAI ) was ifrst proposed by Ganz, which had been more and more concerned in recent 10 years. FAI refers to abnorma