Superfluid Phases of Liquid 3He in Random Media & Confined Space

Plenary Talk, 2017 Fritz London Memorial Prize

Authors: J. A. Sauls
Department of Physics & Astronomy, Northwestern University, Evanston, IL 60208
August 15, 2017

Abstract: The quantum liquid phases of 3He confined in random solids and sub-micron structures provide a unique system for studying the struggle between spontaneous symmetry breaking by a BCS condensate, and disorder originating from atomic-scale impurities to bulk and surface random potentials. This competition leads to a remarkable spectrum of phases exhibiting broken spin- and orbital rotation symmetries, as well as discrete space-time symmetries, that are not realized in pure liquid 3He. I will highlight theoretical ideas and understanding of the effects of disorder on unconventional BCS condensates that have emerged from studies of the superfluid phases of liquid 3He in random media and confined geometries.

This research was supported by U.S. National Science Foundation. Current Grant: DMR-1508730

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