Greybody factor of scalar fields from black strings

Abstract

The greybody factor of massless, uncharged scalar fields is studied in the background of cylindrically symmetric spacetimes, in the low-energy approximation. We discuss two cases. In the first case we derive analytical expression for the absorption probability when the spacetime is kinetically coupled with the Einstein tensor. In the second case we do the analysis in the absence of the coupling constant. For this purpose we analyze the wave equation which is obtained from Klein-Gordon equation. The radial part of the wave equation is solved in the form of the hypergeometric function in the near horizon region, whereas in the far region the solution is of the form of Bessel's function. Finally, considering continuity of the wave function we smoothly match the two solutions in the low energy approximation to get the formula for the absorption probability.

References in corpus (13)

• Fermions Tunnelling from Black Holes
• Quintessence and phantom cosmology with non-minimal derivative coupling
• Rotating black holes at future colliders II: Anisotropic scalar field emission
• Bulk and Brane Decay of a (4+n)-Dimensional Schwarzschild-De-Sitter Black Hole: Scalar Radiation
• When scalar field is kinetically coupled to the Einstein tensor
• Greybody Factors for Brane Scalar Fields in a Rotating Black-Hole Background
• Greybody factors for non-minimally coupled scalar fields in Schwarzschild-de Sitter spacetime
• Non-minimal Kinetic coupling to gravity and accelerated expansion
• Quantum tunneling from three-dimensional black holes
• Greybody factor for a scalar field coupling to Einstein's tensor
• Hawking temperature of rotating charged black strings from tunneling
• Low frequency gray-body factors and infrared divergences: rigorous results
• No absorption in de Sitter space

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• Greybody factors for a nonminimally coupled scalar field in BTZ black hole background
• Greybody factor of scalar field from Reissner-Nordstrom-de Sitter black hole
• Greybody Factors of Holographic Superconductors with $z=2$ Lifshitz Scaling
• Quantum fields in the background spacetime of a loop quantum gravity black hole
• Rotating black string in dRGT massive gravity
• Absorption Cross-Section and Decay Rate of Dilatonic Black Strings
• Greybody Factor for a Rotating Bardeen Black Hole by Perfect Fluid Dark Matter
• Thermodynamics of Black String from Rényi entropy in de Rham-Gabadadze-Tolley Massive Gravity Theory