Finite spectral triples for the fuzzy torus

John W. Barrett, James Gaunt

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Abstract

Finite real spectral triples are defined to characterise the non-commutative geometry of a fuzzy torus. The geometries are the non-commutative analogues of flat tori with moduli determined by integer parameters. Each of these geometries has four different Dirac operators, corresponding to the four spin structures on a torus. The spectrum of the Dirac operator is calculated. It is given by replacing integers with their quantum integer analogues in the spectrum of the corresponding commutative torus.
Original languageEnglish
Article number105345
JournalJournal of Geometry and Physics
Volume207
Early online date24 Oct 2024
DOIs
Publication statusPublished - Jan 2025

Keywords

  • Fuzzy torus
  • Matrix geometry
  • Noncommutative geometry
  • Spectral triple

ASJC Scopus subject areas

  • Mathematical Physics
  • General Physics and Astronomy
  • Geometry and Topology

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