Horizon entropy with loop quantum gravity methods

Sahlmann H, Pranzetti D (2015)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Publisher: Elsevier

Book Volume: 746

Pages Range: 209-216

DOI: 10.1016/j.physletb.2015.04.070

Abstract

We show that the spherically symmetric isolated horizon can be described in terms of an SU(2) connection and an su(2)-valued one-form, obeying certain constraints. The horizon symplectic structure is precisely the one of 3d gravity in a first order formulation. We quantize the horizon degrees of freedom in the framework of loop quantum gravity, with methods recently developed for 3d gravity with non-vanishing cosmological constant. Bulk excitations ending on the horizon act very similarly to particles in 3d gravity. The Bekenstein-Hawking law is recovered in the limit of imaginary Barbero-Immirzi parameter. Alternative methods of quantization are also discussed.

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How to cite

APA:

Sahlmann, H., & Pranzetti, D. (2015). Horizon entropy with loop quantum gravity methods. Physics Letters B, 746, 209-216. https://doi.org/10.1016/j.physletb.2015.04.070

MLA:

Sahlmann, Hanno, and Daniele Pranzetti. "Horizon entropy with loop quantum gravity methods." Physics Letters B 746 (2015): 209-216.

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