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Backflow and dissipation during the quantum decay of a metastable Fermi liquid

Kei Iida
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Abstract

The particle current in a metastable Fermi liquid against a first-order phase transition is calculated at zero temperature. During fluctuations of a droplet of the stable phase, in accordance with the conservation law, not only does an unperturbed current arise from the continuity at the boundary, but a backflow is induced by the density response. Quasiparticles carrying these currents are scattered by the boundary, yielding a dissipative backflow around the droplet. An energy of the hydrodynamic mass flow of the liquid and a friction force exerted on the droplet by the quasiparticles have been obtained in terms of a potential of their interaction with the droplet.

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Kei Iida. 1998-12-16. Backflow and dissipation during the quantum decay of a metastable Fermi liquid. https://doi.org/10.1103/physrevb.59.3798

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