Gauge dependence of the critical dynamics at the superconducting phase transition
The critical dynamics of superconductors in the charged regime is reconsidered within field-theory. For the dynamics, the Ginzburg-Landau model with complex order parameter coupled to the gauge field suggested earlier [Lannert et al. Phys. Rev. Lett. 92, 097004 (2004)] is used. Assuming relaxation...
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| Date: | 2007 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2007
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| Series: | Condensed Matter Physics |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/118189 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Gauge dependence of the critical dynamics at the superconducting phase transition / M. Dudka, R. Folk, G. Moser // Condensed Matter Physics. — 2007. — Т. 10, № 2(50). — С. 189-200. — Бібліогр.: 24 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The critical dynamics of superconductors in the charged regime is reconsidered within field-theory. For the
dynamics, the Ginzburg-Landau model with complex order parameter coupled to the gauge field suggested
earlier [Lannert et al. Phys. Rev. Lett. 92, 097004 (2004)] is used. Assuming relaxational dynamics for both
quantities, the renormalization group functions within one loop approximation are recalculated for different
choices of the gauge. A gauge independent result for the divergence of the measurable electric conductivity
is obtained only at the weak scaling fixed point unstable in one loop order where the time scales of the order
parameter and the gauge field are different. |
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