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Title: Computing black hole partition functions from quasinormal modes

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]
  1. Univ. of Virginia, Charlottesville, VA (United States)
  2. Utrecht Univ., Utrecht (The Netherlands)
  3. Univ. of Virginia, Charlottesville, VA (United States); College of William and Mary, Williamsburg, VA (United States)

We propose a method of computing one-loop determinants in black hole spacetimes (with emphasis on asymptotically anti-de Sitter black holes) that may be used for numerics when completely-analytic results are unattainable. The method utilizes the expression for one-loop determinants in terms of quasinormal frequencies determined by Denef, Hartnoll and Sachdev in \cite{Denef:2009kn}. A numerical evaluation must face the fact that the sum over the quasinormal modes, indexed by momentum and overtone numbers, is divergent. A necessary ingredient is then a regularization scheme to handle the divergent contributions of individual fixed-momentum sectors to the partition function. To this end, we formulate an effective two-dimensional problem in which a natural refinement of standard heat kernel techniques can be used to account for contributions to the partition function at fixed momentum. We test our method in a concrete case by reproducing the scalar one-loop determinant in the BTZ black hole background. We then discuss the application of such techniques to more complicated spacetimes.

Research Organization:
U.S. Dept. of the Navy, Arlington County, VA (United States); Univ. of Virginia, Charlottesville, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0007984
OSTI ID:
1326940
Alternate ID(s):
OSTI ID: 1774067
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 7; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (2)