Fuzzy Geometry via the Spinor Bundle, with Applications to Holographic Space-time and Matrix Theory

Details Fuzzy Geometry via the Spinor Bundle, with Applications to Holographic Space-time and Matrix Theory Fuzzy Geometry via the Spinor Bundle, with Applications to Holographic Space-time and Matrix Theory

2011-06-06

arxiv.org/abs/1106.1179v2

Phys. Rev. D 84, 086008 (2011)

Physics

High Energy Physics

High Energy Physics - Theory

revised version matching published version, added references, additional introduction to HST, expanded and improved various se

Scientific paper

10.1103/PhysRevD.84.086008

We present a new framework for defining fuzzy approximations to geometry in terms of a cutoff on the spectrum of the Dirac operator, and a generalization of it that we call the Dirac-Flux operator. This framework does not require a symplectic form on the manifold, and is completely rotation invariant on an arbitrary n-sphere. The framework is motivated by the formalism of Holographic Space-Time (HST), whose fundamental variables are sections of the spinor bundle over a compact Euclidean manifold. The strong holographic principle (SHP) requires the space of these sections to be finite dimensional. We discuss applications of fuzzy spinor geometry to HST and to Matrix Theory.

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