Thermodynamical Behaviour of Composite Stringy Black Holes
M.Cadoni, C.N.Colacino
TL;DR
This paper investigates the thermodynamical and geometrical properties of heterotic string black holes, focusing on near-horizon AdS(2) behavior and the role of the dilaton in excitation suppression.
Contribution
It provides new insights into the near-horizon scaling behavior of stringy black holes and the conditions under which finite-energy excitations are suppressed.
Findings
Finite-energy excitations are suppressed when the dilaton is constant near the horizon.
Suppression of excitations does not occur when the dilaton varies near the horizon.
The solutions are characterized by two-dimensional Anti-de Sitter Space (AdS2).
Abstract
We study the thermodynamical and geometrical behaviour of the black holes that arise as solutions of the heterotic string action. We discuss the near-horizon scaling behaviour of the solutions that are described by two-dimensional Anti-de Sitter Space AdS(2). We find that finite-energy excitations of AdS(2) are suppressed only for scaling limits characterised by a dilaton which is constant near the horizon, whereas this suppression does not occur when the dilaton is non constant.
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