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  Effective Lagrangian for Quantum Black Holes

Buonanno, A., Gattobigio, M., Maggiore, M., Pilo, L., & Ungarelli, C. (1995). Effective Lagrangian for Quantum Black Holes. Nuclear Physics B, 451: IFUP-TH 14/95, pp. 677-698. doi:10.1016/0550-3213(95)00351-R.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-BE10-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-BE11-2
Genre: Journal Article

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Buonanno, A.1, 2, 3, Author              
Gattobigio, M., Author
Maggiore, M., Author
Pilo, L., Author
Ungarelli, C., Author
Affiliations:
1Dipartimento di Fisica dell'Università, escidoc:persistent22              
2Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Italy, escidoc:persistent22              
3Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, escidoc:1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
 Abstract: We discuss the most general effective Lagrangian obtained from the assumption that the degrees of freedom to be quantized, in a black hole, are on the horizon. The effective Lagrangian depends only on the induced metric and the extrinsic curvature of the (fluctuating) horizon, and the possible operators can be arranged in an expansion in powers of $\mpl/M$, where $\mpl$ is the Planck mass and $M$ the black hole mass. We perform a semiclassical expansion of the action with a formalism which preserves general covariance explicitly. Quantum fluctuations over the classical solutions are described by a single scalar field living in the 2+1 dimensional world-volume swept by the horizon, with a given coupling to the background geometry. We discuss the resulting field theory and we compute the black hole entropy with our formalism.

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 Dates: 1995-04-141995-07-171995
 Publication Status: Published in print
 Pages: 24 pages, Latex, Nucl. Phys. B, to appear
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: gr-qc/9504020
DOI: 10.1016/0550-3213(95)00351-R
URI: http://arxiv.org/abs/gr-qc/9504020
 Degree: -

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Title: Nuclear Physics B
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 451 Sequence Number: IFUP-TH 14/95 Start / End Page: 677 - 698 Identifier: ISSN: 0550-3213
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925564667