Strong-coupling corrections to hard domain walls in superfluid 3He-B
Abstract
Domain walls in superfluid 3He-B have gained renewed interest in light of experimental progress on confining helium in nanofabricated geometries. Here, we study the effect of strong-coupling corrections on domain wall width and interfacial tension by determining self-consistent solutions to spatially-dependent Ginzburg-Landau equations. We find that the formation of domain walls is generally energetically favored in strong coupling over weak coupling. Calculations were performed over a wide range of temperatures and pressures, showing decreasing interface energy with increasing temperature and pressure. This has implications for the observability of such domain walls in 3He-B, which are of both fundamental interest and form the basis for spatially-modulated pair-density wave states, when stabilized by strong confinement.
Keywords
Cite
@article{arxiv.2106.02065,
title = {Strong-coupling corrections to hard domain walls in superfluid 3He-B},
author = {M. J. Rudd and P. Senarath Yapa and A. J. Shook and J. Maciejko and J. P. Davis},
journal= {arXiv preprint arXiv:2106.02065},
year = {2021}
}
Comments
9 pages, 6 figures, accepted version, includes appendix with alternative Wiman beta parameters