Physics – Condensed Matter
Scientific paper
1997-09-29
Physics
Condensed Matter
final verion. appeared in Chinese J. of Physics v.36, 197 (1998)
Scientific paper
We investigate the problem of forces on moving vortex in a superfluid or superconductor. The main purpose is to locate the source which leads to the contradictory results in the literature. We establish the connection between this problem to the difficult but well studied subject of resistivity formula in transport theory. The relaxation time approximation used in the force calculation via force-force correlation function is shown to be invalid. The roles of Berry's phase and fluctuation-dissipation theorems are discussed.
Ao Ping
Zhu Xi-Ming
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