Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313530023> ?p ?o ?g. }
Showing items 1 to 57 of
57
with 100 items per page.
- W4313530023 abstract "Very compact stars seem to be forbidden in General Relativity. While Buchdahl's theorem sets an upper bound on compactness, further no-go results rely on the existence of two light rings, the inner of which has been associated to gravitational instabilities. However, little is known about the role of quantum fields in these strong gravity regimes. Here, we consider the particularly simple model of a constant density star and we work in the probe approximation where the backreaction is ignored. We show that the trapping of modes inside the star leads the renormalized stress tensor of Conformal Field Theories to diverge faster than the classical source in the Buchdahl limit. This leads to the violation of the Null Energy Condition around the inner light ring. The backreaction of quantum fields in this regime therefore cannot be ignored. This happens as the star's surface approaches the Buchdahl radius $9GM/4$ rather than the Schwarzschild radius. The results are independent of the details of the interactions, but contain an ambiguity associated to the renormalization scheme." @default.
- W4313530023 created "2023-01-06" @default.
- W4313530023 creator A5053108065 @default.
- W4313530023 creator A5087838300 @default.
- W4313530023 date "2023-01-02" @default.
- W4313530023 modified "2023-09-26" @default.
- W4313530023 title "Quantum Field Theory on compact stars near the Buchdahl limit" @default.
- W4313530023 doi "https://doi.org/10.48550/arxiv.2301.00826" @default.
- W4313530023 hasPublicationYear "2023" @default.
- W4313530023 type Work @default.
- W4313530023 citedByCount "0" @default.
- W4313530023 crossrefType "posted-content" @default.
- W4313530023 hasAuthorship W4313530023A5053108065 @default.
- W4313530023 hasAuthorship W4313530023A5087838300 @default.
- W4313530023 hasBestOaLocation W43135300231 @default.
- W4313530023 hasConcept C115047598 @default.
- W4313530023 hasConcept C115304011 @default.
- W4313530023 hasConcept C121332964 @default.
- W4313530023 hasConcept C124017977 @default.
- W4313530023 hasConcept C147452769 @default.
- W4313530023 hasConcept C166124518 @default.
- W4313530023 hasConcept C178635117 @default.
- W4313530023 hasConcept C33332235 @default.
- W4313530023 hasConcept C37914503 @default.
- W4313530023 hasConcept C38652104 @default.
- W4313530023 hasConcept C41008148 @default.
- W4313530023 hasConcept C62520636 @default.
- W4313530023 hasConcept C74650414 @default.
- W4313530023 hasConceptScore W4313530023C115047598 @default.
- W4313530023 hasConceptScore W4313530023C115304011 @default.
- W4313530023 hasConceptScore W4313530023C121332964 @default.
- W4313530023 hasConceptScore W4313530023C124017977 @default.
- W4313530023 hasConceptScore W4313530023C147452769 @default.
- W4313530023 hasConceptScore W4313530023C166124518 @default.
- W4313530023 hasConceptScore W4313530023C178635117 @default.
- W4313530023 hasConceptScore W4313530023C33332235 @default.
- W4313530023 hasConceptScore W4313530023C37914503 @default.
- W4313530023 hasConceptScore W4313530023C38652104 @default.
- W4313530023 hasConceptScore W4313530023C41008148 @default.
- W4313530023 hasConceptScore W4313530023C62520636 @default.
- W4313530023 hasConceptScore W4313530023C74650414 @default.
- W4313530023 hasLocation W43135300231 @default.
- W4313530023 hasOpenAccess W4313530023 @default.
- W4313530023 hasPrimaryLocation W43135300231 @default.
- W4313530023 hasRelatedWork W1609209172 @default.
- W4313530023 hasRelatedWork W2025488269 @default.
- W4313530023 hasRelatedWork W2047799374 @default.
- W4313530023 hasRelatedWork W2086028785 @default.
- W4313530023 hasRelatedWork W2087789304 @default.
- W4313530023 hasRelatedWork W2150210258 @default.
- W4313530023 hasRelatedWork W2171835538 @default.
- W4313530023 hasRelatedWork W3128685919 @default.
- W4313530023 hasRelatedWork W4286889736 @default.
- W4313530023 hasRelatedWork W2129384389 @default.
- W4313530023 isParatext "false" @default.
- W4313530023 isRetracted "false" @default.
- W4313530023 workType "article" @default.