Non-Commutative Black Hole Algebra and String Theory from Gravity

Details Non-Commutative Black Hole Algebra and String Theory from Gravity Non-Commutative Black Hole Algebra and String Theory from Gravity

1997-07-18

arxiv.org/abs/gr-qc/9707042v3

Class.Quant.Grav. 15 (1998) 519-535

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, LaTeX. Journal reference corrected

Scientific paper

10.1088/0264-9381/15/3/006

We generalize the action found by 't Hooft, which describes the gravitational interaction between ingoing and outgoing particles in the neighbourhood of a black hole. The effect of this back-reaction is that of a shock wave, and it provides a mechanism for recovering information about the momentum of the incoming particles. The new action also describes particles with transverse momenta and takes into account the transverse curvature of the hole, and has the form of a string theory action. Apart from the Polyakov term found by 't Hooft, we also find an antisymmetric tensor, which is here related to the momentum of the particles. At the quantum level, the identification between position and momentum operators leads to four non-commuting coordinates. A certain relation to M(atrix) theory is proposed.

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