Govindarajan, T. R. ; Kaul, R. K. ; Suneeta, V. (2002) Quantum gravity on dS3 Classical & Quantum Gravity, 19 (15). pp. 4195-4205. ISSN 0264-9381
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Official URL: http://iopscience.iop.org/0264-9381/19/15/320
Related URL: http://dx.doi.org/10.1088/0264-9381/19/15/320
Abstract
We study quantum gravity on dS3 using the Chern-Simons formulation of three-dimensional gravity. We derive an exact expression for the partition function for quantum gravity on dS3 in a Euclidean path integral approach. We show that the topology of the space relevant for studying de Sitter entropy is a solid torus. The quantum fluctuations of de Sitter space are sectors of configurations of point masses taking a discrete set of values. The partition function gives the correct semiclassical entropy. The sub-leading correction to the entropy is logarithmic in horizon area, with a coefficient -1. We discuss this correction in detail, and show that the sub-leading correction to the entropy from the dS/CFT correspondence agrees with our result. A comparison with the corresponding results for the AdS3 BTZ black hole is also presented.
Item Type: | Article |
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Source: | Copyright of this article belongs to Institute of Physics Publishing. |
ID Code: | 16399 |
Deposited On: | 15 Nov 2010 13:43 |
Last Modified: | 17 May 2016 01:09 |
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