2D dilaton-gravity from 5D Einstein equations

1993/07/09 by P. F. González‐Díaz, P. F. González-Díaz, González-Díaz, P. F.
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Relativity and Gravitational Theory #gr-qc

paper · pdf · doi:10.48550/arxiv.gr-qc/9307007

9, IMAFF-Rc-04-93#

openalex publication_date 1993/07/09 · arxiv created 1993/07/16 · arxiv updated 2016/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A semiclassical two-dimensional dilaton-gravity model is obtained by dimensional reduction of the spherically symmetric five-dimensional Einstein equations and used to investigate black hole evaporation. It is shown that this model prevents the formation of naked singularity and allows spacetime wormholes to contribute the process of formation and evaporation of black holes.

Related

• Evaporation of regular black holes in 2D dilaton gravity
• No Drama in 2D Black Hole Evaporation
• Collapse Scenario and Final State of Evaporation for Schwarzschild Black Hole in Dimensionally-Reduced Model of Dilaton Gravity
• 2d quantum gravity with torsion, dilaton theory and black hole formation
• Two-dimensional dilaton black holes