The Black Hole Entropy Can Be Smaller than A/4

Abstract

The coupling of a Nambu-Goto string to gravity allows for Schwarzschild black holes whose entropy to area relation is $S=(A/4)(1-4\mu )$, where $\mu$ is the string tension.

LaTeX, 9 pages, final version to appear in Phys.Lett. B

References in corpus (7)

• Black Hole Entropy in Canonical Quantum Gravity and Superstring Theory
• The Gravitational Hamiltonian, Action, Entropy, and Surface Terms
• Black Hole Entropy and the Dimensional Continuation of the Gauss-Bonnet Theorem
• Quantum Hair on Black Holes
• Action and Entropy of Extreme and Non-Extreme Black Holes
• The Off-Shell Black Hole
• Euclidean Black Hole Vortices

Cited by in corpus (10)

• Conformally dressed black hole in 2+1 dimensions
• Topological black holes dressed with a conformally coupled scalar field and electric charge
• Rotating Black Branes in Brans-Dicke-Born-Infeld Theory
• Thermodynamics of charged rotating black branes in Brans-Dicke theory with quadratic scalar field potential
• Coloured Black Holes in Higher Curvature String Gravity
• Bubbles of Nothing and Supersymmetric Compactifications
• Modification of black-hole entropy by strings
• The Number of Particles Released in Gauge Cosmic String Formation
• Thermal Action and Specific Heat of the Five-Dimensional Non-Extremal Black Hole
• 2+1 Black Hole with a Dynamical Conical Singularity