Friction Coefficient and Berry Phase for a Topological Singularity in a Superfluid

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The coexistence of the universal transverse force and the non-universal friction force on a topological singularity in a superfluid is shown here. Based on the BCS type microscopic theory, we explicitly evaluate the quasiparticle contribution to the friction coefficient in a clean fermionic superfluid, showing a new feature of logarithmic divergence.
Latex, 4 pages

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/28406

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9807045
 http://arxiv.org/abs/cond-mat/9807045

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arXiv