| |
Record |
Links |
|
Author  |
del Rio, A.; Marañon-Gonzalez, F.J.; Navarro-Salas, J. |
|
| |
Title |
Singularity resolution in spherically reduced 2D semiclassical gravity with negative central charge |
Type |
Journal Article |
| |
Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
|
| |
Volume |
111 |
Issue |
4 |
Pages |
045025 - 11pp |
|
| |
Keywords |
|
|
| |
Abstract |
We analyze the semiclassical Schwarzschild geometry in the Boulware quantum state in the framework of two-dimensional (2D) dilaton gravity. The classical model is defined by the spherical reduction of Einstein's gravity sourced with conformal scalar fields. The expectation value of the stress-energy tensor in the Boulware state is singular at the classical horizon of the Schwarzschild spacetime, but when backreaction effects are considered, previous results have shown that the 2D geometry is horizonless and described by a nonsymmetric wormhole with a curvature singularity on the other side of the throat. In this work we show that reversing the sign of the central charge of the conformal matter removes the curvature singularity of the 2D backreacted geometry, which happens to be horizonless and asymptotically flat. This result is consistent with a similar analysis recently performed for the Callan-Giddings-Harvey-Strominger model. We also argue the physical significance of negative central charges in conformal anomalies from a four-dimensional perspective. |
|
| |
Address |
[del Rio, Adrian] Univ Carlos III Madrid, Dept Matemat, Ave Univ 30, Leganes 28911, Spain, Email: adrdelri@math.uc3m.es; |
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Amer Physical Soc |
Place of Publication |
|
Editor |
|
|
| |
Language |
English |
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2470-0010 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
WOS:001435471700008 |
Approved |
no |
|
| |
Is ISI |
yes |
International Collaboration |
no |
|
| |
Call Number |
IFIC @ pastor @ |
Serial |
6546 |
|
| Permanent link to this record |
