Lifshitz Transition in the Double-Core Vortex in He-3-B
2015 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 115, no 23, 235301Article in journal (Refereed) PublishedText
We study the spectrum of fermion states localized within the vortex core of a weak-coupling p-wave superfluid. The low energy spectrum consists of two anomalous branches that generate a large density of states at the locations of the half cores of the vortex. Fermi liquid interactions significantly stretch the vortex structure, which leads to a Lifshitz transition in the effective Fermi surface of the vortex core fermions. We apply the results to the rotational dynamics of vortices in superfluid He-3-B and find an explanation for the observed slow mode.
Place, publisher, year, edition, pages
American Physical Society , 2015. Vol. 115, no 23, 235301
IdentifiersURN: urn:nbn:se:kth:diva-180223DOI: 10.1103/PhysRevLett.115.235301ISI: 000365881100009ScopusID: 2-s2.0-84949666334OAI: oai:DiVA.org:kth-180223DiVA: diva2:895444
QC 201601192016-01-192016-01-082016-01-19Bibliographically approved