Sharma, P (2020) Approach to Solving Quasiclassical Equations with Gauge Invariance. In: Journal of Low Temperature Physics .
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Abstract
Quasiclassical equations with manifest gauge invariance are discussed in the context of unconventional singlet superconducting states in the static limit. Deviations of the quasiclassical propagator from its equilibrium solutions in the presence of magnetic fields and Hall terms are analysed in terms of a �small� parameter and a formulation developed to first order in �small�. A modified quasiclassical propagator is defined to this order that is a solution of a new gauge-invariant Eilenberger-like equation with a normalization condition. A Riccati parametrization with manifest gauge invariance is proposed. Riccati equations are derived to leading order in �small� that are directly applicable to superconducting systems in the presence of magnetic fields.
Item Type: | Journal Article |
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Publication: | Journal of Low Temperature Physics |
Publisher: | Springer |
Additional Information: | The copyright of this article belongs to Springer |
Keywords: | Gages; Magnetic fields, Equilibrium solutions; First order; Gauge invariance; Leading orders; Parametrizations; Quasiclassical equations; Static limits; Superconducting state, Riccati equations |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 13 Aug 2020 12:20 |
Last Modified: | 13 Aug 2020 12:20 |
URI: | http://eprints.iisc.ac.in/id/eprint/66193 |
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