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arXiv · 2303.03780

On the electric charge of quantized vortices and the dipole moment of vortex pairs and rings in a magnetic field

A. M. Konstantinov·S. I. Shevchenko
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Abstract

It is shown that, in the presence of a magnetic field, a quantized vortex line in a superfluid liquid acquires a linear polarization charge, which is localized near the vortex axis over a length on the order of the coherence length. It is found that the total charge of a rectilinear vortex is nonzero, while the vortex pair and vortex ring have a nonzero dipole moment. The electric fields of rectilinear vortices near the end surface of a cylindrical vessel filled with a superfluid liquid are calculated. The electric polarization of superfluid systems in the presence of thermally activated vortex pairs and vortex rings has been studied. It is shown that such a polarization arises in the presence of relative motion of the normal and superfluid components.

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A. M. Konstantinov, S. I. Shevchenko. 2023-03-07. On the electric charge of quantized vortices and the dipole moment of vortex pairs and rings in a magnetic field. https://doi.org/10.1063/10.0019427

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