Half-quantum vortices in nematic and chiral phases of 3He
Artikel i vetenskaplig tidskrift, 2021

We report theoretical results for the stability of half-quantum vortices (HQVs) in the superfluid phases of confined in highly anisotropic Nafen aerogel. Superfluidity of confined in Nafen is the realization of a “nematic superfluid” with Cooper pairs condensed into a single -wave orbital aligned along the anisotropy axis of the Nafen aerogel. In addition to the nematic phase, we predict a second “chiral” phase that onsets at a lower transition temperature. This chiral phase spontaneously breaks time-reversal symmetry and is a topological superfluid. Both superfluid phases are equal-spin pairing condensates that host arrays of HQVs as equilibrium states of rotating superfluid . We present results for the structure of HQVs, including magnetic and topological signatures of HQVs in both the nematic and chiral phases of -Nafen.

Författare

Robert C. Regan

Northwestern University

Joshua Wiman

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

J. A. Sauls

Northwestern University

Physical Review B

24699950 (ISSN) 24699969 (eISSN)

Vol. 104 2 024513

Ämneskategorier

Oorganisk kemi

Annan fysik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.104.024513

Mer information

Senast uppdaterat

2021-08-11