Topological structure of the inter-band phase difference soliton in two-band superconductivity

Research output: Contribution to journalArticlepeer-review


  • Y. Tanaka
  • A. Iyo
  • K. Tokiwa
  • T. Watanabe
  • A. Sundaresan
  • N. Terada

Colleges, School and Institutes


Two-component superconductivity based on the two-band superconductor has a functional topology such as an inter-band phase difference soliton (i-soliton) to realize topological electronics (topolonics). Many gauge field theories are applied to investigate the topology of two-band superconductivity. To ease experimental and electronics applications, these theories should be refined. Weinberg–Salam theory and SU(2) (two-dimensional special unitary symmetry) gauge field theory are proper starting points. An effective extra force field because of the crystal structure and inter-band Josephson interaction, rather than spontaneous symmetry breaking, simplifies the conventional gauge field theory.


Original languageEnglish
Pages (from-to)1010-1012
Number of pages3
JournalPhysica C Superconductivity
Issue number20
Publication statusPublished - 1 Nov 2010
EventInternational Symposium on Superconductivity (ISS 2009), 22nd - Tsukuba, Japan
Duration: 2 Nov 20094 Nov 2009