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

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

1998-07-02

arxiv.org/abs/cond-mat/9807045v1

Physics

Condensed Matter

Latex, 4 pages

Scientific paper

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.

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