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VOLUME 62 (1995) | ISSUE 1 | PAGE 58
Three nondissipative forces on a moving vortex line in superfluids and superconductors
In the hydrodynamic limit the nondissipative force Fnd that acts on a vortex in a superconductor or a Fermi superfluid, contains three different contributions of topological origin. These are (i) the Magnus force, (ii) the Iordanskii force, whose origin is analogous to the Aharonov-Bohm effect for spinning cosmic strings, and (iii) the force resulting from the spectral flow of fermion zero modes in the vortex core, which leads to the production of quasiparticle momentum when the vortex moves with respect to the normal component. The latter force leads to an anomaly in the thermodynamics of the moving vortices; the possible relationship of this anomaly to the Unruh effect is discussed. © 1995