, Volume 307, Issue 1, pp 101-131
Date: 14 Jul 2011

Quantum Isometries of the Finite Noncommutative Geometry of the Standard Model

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We compute the quantum isometry group of the finite noncommutative geometry F describing the internal degrees of freedom in the Standard Model of particle physics. We show that this provides genuine quantum symmetries of the spectral triple corresponding to M × F, where M is a compact spin manifold. We also prove that the bosonic and fermionic part of the spectral action are preserved by these symmetries.

Communicated by A. Connes