Abstract
Multi-gap superconductors exhibit interesting properties. In N-gap superconductors, the U(1)N phase invariance is spontaneously broken. When N is greater than 2, N ≥ 3, several interesting phenomena will emerge due to the multi-band effect. Among them, the time-reversal symmetry breaking and the emergence of massless modes are significant. We consider a multi-band model with inter-band frustrated-Josephson couplings for general N. The conditions for the time-reversal symmetry breaking and the existence of massless modes are reduced to a simple form for the Josephson couplings in a separable form which we propose in this paper.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
