Hidden conformal symmetry of Kerr-bolt spacetimes

作者：Ghezelbash A M^*; Kamali V; Setare M R

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(12): 124051.

DOI：10.1103/PhysRevD.82.124051

We extend the recent proposal of hidden conformal symmetry to the four-dimensional spacetimes with a rotational parameter and Newman-Unti-Tamburino twist. We consider the wave equation of a massless scalar field in the background of Kerr-Bolt spacetimes and show in the "near region'' that the wave equation can be reproduced by the SL(2, R)(L) x SL(2, R)(R) Casimir quadratic operators. Moreover, we compute the microscopic entropy of the dual conformal field theories by the Cardy formula and find a perfect match to the entropy of Kerr-Bolt spacetimes. The absorption cross section of a near region scalar field also matches the microscopic absorption cross section of the dual conformal field theories.

• 出版日期2010-12-22