22050045

Video URL

http://pirsa.org/22050045

Multiband superconductivity and the breaking of time reversal symmetry

Herbut, I. (2022). Multiband superconductivity and the breaking of time reversal symmetry. Perimeter Institute for Theoretical Physics. http://pirsa.org/22050045

Herbut, Igor. Multiband superconductivity and the breaking of time reversal symmetry. Perimeter Institute for Theoretical Physics, May. 19, 2022, http://pirsa.org/22050045 

          @misc{ scitalks_22050045,
            doi = {},
            url = {http://pirsa.org/22050045},
            author = {Herbut, Igor},
            keywords = {Quantum Matter},
            language = {en},
            title = {Multiband superconductivity and the breaking of time reversal symmetry},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2022},
            month = {may},
            note = {Talk #22050045 see, \url{https://scitalks.ca}}
          }

Igor Herbut Simon Fraser University (SFU)

Source Repository PIRSA
Collection
Talk Type Conference
Subject

Abstract

I will discuss how spontaneous breaking of time reversal symmetry in multiband superconductors leads quite generally to the formation of small Fermi surfaces of Bogoliubov excitations, irrespective of whether inversion symmetry is absent or present in the superconducting state. In the latter case the inversion symmetry is susceptible to being dynamical broken at low temperatures by the residual interactions. A lattice model of this process will be discussed. Its final result is a reduced, but still finite Bogoliubov-Fermi surface.