Band spectrum is D-brane

Koji Hashimoto, Taro Kimura

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We show that band spectrum of topological insulators can be identified as the shape of D-branes in string theory. The identification is based on a relation between the Berry connection associated with the band structure and the Atiyah-Drinfeld-Hitchin-Manin/Nahm construction of solitons whose geometric realization is available with D-branes. We also show that chiral and helical edge states are identified as D-branes representing a noncommutative monopole.

Original languageEnglish
Article number013B04
JournalProgress of Theoretical and Experimental Physics
Issue number1
Publication statusPublished - 2016 Jan

ASJC Scopus subject areas

  • General Physics and Astronomy


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