FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387307291> ?p ?o ?g. }

• W4387307291 endingPage "004" @default.
• W4387307291 startingPage "004" @default.
• W4387307291 abstract "Abstract We study the linear stability of static and spherically symmetric (SSS) black holes (BHs) in the presence of a Weyl-squared curvature besides an Einstein-Hilbert term in the action. In this theory, there is always an exact Schwarzschild BH irrespective of the Weyl coupling constant α , with the appearance of a non-Schwarzschild solution for a particular range of the coupling of order | α | ≈ r h 2 (where r h is the horizon radius). On the SSS background, we show that the propagating degrees of freedom (DOFs) are three in the odd-parity sector and four in the even-parity sector. Since the number of total seven DOFs coincides with those on the Minkowski and isotropic cosmological backgrounds, the Weyl gravity does not pose a strong coupling problem associated with the vanishing kinetic term of dynamical perturbations. The odd-parity perturbations possess at least one ghost mode, but the propagation speeds of all three dynamical modes are luminal. In the even-parity sector, our analysis, based on the WKB approximation, shows that, besides the appearance of at least one ghost mode, the Schwarzschild solution is prone to both radial and angular Laplacian instabilities of several dynamical perturbations for the Weyl coupling in the range | α | ≫ r h 2 . For large radial and angular momentum modes, the time scales of such instabilities are much shorter than the horizon distance r h divided by the speed of light. In the coupling regime | α |≲ r h 2 , the WKB approximation does not hold any longer, and a different analysis should be performed if one wants to state the stability of both the Schwarzschild and non-Schwarzschild BH solutions in this range of model parameters." @default.
• W4387307291 created "2023-10-04" @default.
• W4387307291 creator A5013481498 @default.
• W4387307291 creator A5055679331 @default.
• W4387307291 date "2023-10-01" @default.
• W4387307291 modified "2023-10-05" @default.
• W4387307291 title "Stability of Schwarzshild black holes in quadratic gravity with Weyl curvature domination" @default.
• W4387307291 cites W1582510773 @default.
• W4387307291 cites W1928363801 @default.
• W4387307291 cites W1969383785 @default.
• W4387307291 cites W1969449998 @default.
• W4387307291 cites W1971230011 @default.
• W4387307291 cites W1975566581 @default.
• W4387307291 cites W1985457360 @default.
• W4387307291 cites W1988281968 @default.
• W4387307291 cites W1989972931 @default.
• W4387307291 cites W1994002049 @default.
• W4387307291 cites W2000112247 @default.
• W4387307291 cites W2001297627 @default.
• W4387307291 cites W2015947787 @default.
• W4387307291 cites W2019649342 @default.
• W4387307291 cites W2025203454 @default.
• W4387307291 cites W2037023898 @default.
• W4387307291 cites W2041664594 @default.
• W4387307291 cites W2044258715 @default.
• W4387307291 cites W2052765492 @default.
• W4387307291 cites W2057054902 @default.
• W4387307291 cites W2064395219 @default.
• W4387307291 cites W2077438050 @default.
• W4387307291 cites W2091116755 @default.
• W4387307291 cites W2095841786 @default.
• W4387307291 cites W2099847368 @default.
• W4387307291 cites W2101406770 @default.
• W4387307291 cites W2105653086 @default.
• W4387307291 cites W2110833434 @default.
• W4387307291 cites W2116923776 @default.
• W4387307291 cites W2124225063 @default.
• W4387307291 cites W2136303076 @default.
• W4387307291 cites W2139274219 @default.
• W4387307291 cites W2157606627 @default.
• W4387307291 cites W2231773349 @default.
• W4387307291 cites W2245706544 @default.
• W4387307291 cites W2252795400 @default.
• W4387307291 cites W2300135893 @default.
• W4387307291 cites W2543013373 @default.
• W4387307291 cites W2617589880 @default.
• W4387307291 cites W2620120054 @default.
• W4387307291 cites W2620258037 @default.
• W4387307291 cites W2625386886 @default.
• W4387307291 cites W2767486812 @default.
• W4387307291 cites W2767864485 @default.
• W4387307291 cites W2789529951 @default.
• W4387307291 cites W2793326874 @default.
• W4387307291 cites W2803250274 @default.
• W4387307291 cites W2904918740 @default.
• W4387307291 cites W2904976001 @default.
• W4387307291 cites W2954633129 @default.
• W4387307291 cites W3015982385 @default.
• W4387307291 cites W3042740941 @default.
• W4387307291 cites W3085133199 @default.
• W4387307291 cites W3099432282 @default.
• W4387307291 cites W3100339959 @default.
• W4387307291 cites W3103753104 @default.
• W4387307291 cites W3105229939 @default.
• W4387307291 cites W3125990348 @default.
• W4387307291 cites W3202697437 @default.
• W4387307291 cites W3209113705 @default.
• W4387307291 cites W4221153670 @default.
• W4387307291 cites W4223546879 @default.
• W4387307291 cites W4225326726 @default.
• W4387307291 cites W4225976428 @default.
• W4387307291 cites W4240913885 @default.
• W4387307291 cites W4319444837 @default.
• W4387307291 cites W4360620504 @default.
• W4387307291 cites W4361001328 @default.
• W4387307291 cites W4377100702 @default.
• W4387307291 cites W4380853119 @default.
• W4387307291 cites W4382722542 @default.
• W4387307291 cites W4382987163 @default.
• W4387307291 doi "https://doi.org/10.1088/1475-7516/2023/10/004" @default.
• W4387307291 hasPublicationYear "2023" @default.
• W4387307291 type Work @default.
• W4387307291 citedByCount "0" @default.
• W4387307291 crossrefType "journal-article" @default.
• W4387307291 hasAuthorship W4387307291A5013481498 @default.
• W4387307291 hasAuthorship W4387307291A5055679331 @default.
• W4387307291 hasConcept C115304011 @default.
• W4387307291 hasConcept C121332964 @default.
• W4387307291 hasConcept C124017977 @default.
• W4387307291 hasConcept C136125196 @default.
• W4387307291 hasConcept C147452769 @default.
• W4387307291 hasConcept C155675718 @default.
• W4387307291 hasConcept C37914503 @default.
• W4387307291 hasConcept C62520636 @default.
• W4387307291 hasConcept C74650414 @default.
• W4387307291 hasConcept C88030215 @default.
• W4387307291 hasConceptScore W4387307291C115304011 @default.
• W4387307291 hasConceptScore W4387307291C121332964 @default.

• next