Effective Lagrangians for BCS superconductors at T=0
Mar 1, 1995
4 pages
Published in:
- Phys.Rev.B 51 (1995) 6531-6535
e-Print:
- cond-mat/9411047 [cond-mat]
Report number:
- CERN-TH.7385-94
Citations per year
Abstract: (APS)
We show that the low-frequency, long-wavelength dynamics of the phase of the pair field for a BCS-type s-wave superconductor at T=0 is equivalent to that of a time-dependent nonlinear Schrödinger Lagrangian (TDNLSL), when terms required by Galilean invariance are included. If the modulus of the pair field is also allowed to vary, the system is equivalent to two coupled TDNLSL’s.Note:
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