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Title: Kruskal coordinates as canonical variables for Schwarzschild black holes
Authors: Varadarajan, Madhavan
Issue Date: 15-Apr-2001
Publisher: The American Physical Society
Citation: Physical Review D, 2001, Vol.63, 084007
Abstract: We derive a transformation from the usual ADM metric-extrinsic curvature variables on the phase space of Schwarzschild black holes to new canonical variables which have the interpretation of Kruskal coordinates. We explicitly show that this transformation is non-singular, even at the horizon. The constraints of the theory simplify in terms of the new canonical variables and are equivalent to the vanishing of the canonical momenta. Our work is based on earlier seminal work by Kuchař in which he reconstructed curvature coordinates and a mass function from spherically symmetric canonical data. The key feature in our construction of a nonsingular canonical transformation to Kruskal variables is the scaling of the curvature coordinate variables by the mass function rather than by the mass at left spatial infinity.
ISSN: 1550-2368 (online)
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Copyright: (2001) by the American Physical Society
Appears in Collections:Research Papers (TP)

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