Signature change in two-dimensional black-hole models of loop quantum gravity

Martin Bojowald, Suddhasattwa Brahma

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Signature change has been identified as a generic consequence of holonomy modifications in spherically symmetric models of loop quantum gravity with real connections, which includes modified Schwarzschild solutions. An extension of this result to two-dimensional dilaton models, including in particular the Callan-Giddings-Harvey-Strominger (CGHS) solution, further elucidates properties of black holes in this setting. In addition, new obstructions are found to coupling matter and to including operator-ordering effects in an anomaly-free manner.

Original languageEnglish (US)
Article number026012
JournalPhysical Review D
Issue number2
StatePublished - Jul 15 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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