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Compact Chiral Boson Fields on the Horizon of BTZ Black Hole

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arxiv 1810.09045 v1 pith:VWQ4UE5X submitted 2018-10-22 gr-qc

Compact Chiral Boson Fields on the Horizon of BTZ Black Hole

classification gr-qc
keywords blackbosonfieldfieldsholechiralcompacthorizon
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In the previous work, it was shown that the degrees of freedom on the horizon of BTZ black hole can be described by two chiral massless scalar fields with opposite chirality. In this paper, we continuous this research. It is found that the scalar field is actually a compact boson field on a circle. The compactness results in the quantization of the black hole radius. Then we quantize the two boson fields and get two abelian Kac-Moody algebras. From the boson field, one can construct the full $W_{1+\infty}$ algebra which was used to classify the BTZ black holes.

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