Massive complex scalar field in the Kerr-Sen geometry: Exact solution of wave equation and Hawking radiation

Details Massive complex scalar field in the Kerr-Sen geometry: Exact solution of wave equation and Hawking radiation Massive complex scalar field in the Kerr-Sen geometry: Exact solution of wave equation and Hawking radiation

2003-03-20

arxiv.org/abs/gr-qc/0303075v1

J.Math.Phys. 44 (2003) 1084-1088

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Revtex, 5 pages, no figure. A simplified version of gr-qc/0107037

Scientific paper

The separated radial part of a massive complex scalar wave equation in the Kerr- Sen geometry is shown to satisfy the generalized spheroidal wave equation which is, in fact, a confluent Heun equation up to a multiplier. The Hawking evaporation of scalar particles in the Kerr-Sen black hole background is investigated by the Damour-Ruffini-Sannan method. It is shown that quantum thermal effect of the Kerr-Sen black hole has the same character as that of the Kerr-Newman black hole.

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