English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Inspired by the recent proposal for the quantum effective dynamics of theSchwarzschild spacetime given in \cite{AOS1}, we investigate the effectivedynamics of the loop quantized Janis-Newman-Winicour (JNW) spacetime which isan extension of the Schwarzschild spacetime with an extra minimally coupledmassless scalar field. Two parameters are introduced in order to regularize theHamiltonian constraint in the quantum effective dynamics. These two parametersare assumed to be Dirac observables when the effective dynamics is solved. Bycarefully choosing appropriate conditions for these two parameters, wecompletely determine them, and the resulted new effective description of theJNW spacetime leads to a well behaved quantum dynamics which on one handresolves the classical singularities, and on the other hand, agrees with theclassical dynamics in the low curvature region.

Quantum geometry and effective dynamics of Janis-Newman-Winicour singularities