Wednesday, June 6, 2012

1108.3749 (B. Iochum et al.)

Spectral action beyond the weak-field approximation    [PDF]

B. Iochum, C. Levy, D. Vassilevich
The spectral action for a non-compact commutative spectral triple is computed covariantly in a gauge perturbation up to order 2 in full generality. In the ultraviolet regime, $p\to\infty$, the action decays as $1/p^4$ in any even dimension.
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