Dilaton Gravity and No-Hair Theorem in Two Dimensions
Olaf Lechtenfeld, Chiara Nappi
TL;DR
This paper explores two-dimensional dilaton-gravity theories inspired by string theory, demonstrating that they admit charged black holes with multiple horizons that satisfy scalar no-hair theorems.
Contribution
It introduces a class of two-dimensional dilaton-gravity models with charged multiple-horizon black holes and proves they obey scalar no-hair theorems, extending understanding of black hole solutions.
Findings
Existence of charged multiple-horizon black holes in 2D dilaton-gravity models
Proof that these solutions satisfy scalar no-hair theorems
Insights into black hole structure in lower-dimensional theories
Abstract
We study a general class of two-dimensional theories of the dilaton-gravity type inspired by string theory and show that they admit charged multiple-horizon black holes. These solutions are proved to satisfy scalar no-hair theorems.
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