Black hole thermodynamics in asymptotically safe gravity

Mandal, Rituparna; Gangopadhyay, Sunandan

doi:10.1007/s10714-022-03045-9

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…However, when ζ is larger than the critical value ζ 1 , both the local maximal and minimal temperatures disappear and all phases are stable. A similar swallow-tail pattern was observed in the asymptotically flat black holes [22] by using the identification proposed in [8].…”

Section: Asymptotically Anti-de Sitter Black Holessupporting

confidence: 79%

Phase Structure of Quantum Improved Schwarzschild-(Anti)de Sitter Black Holes

Chen¹,

Chen²,

Ishibashi³

et al. 2023

Preprint

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We study the phase structure of quantum improved Schwarzschild-(A)dS black holes in asymptotically safe gravity. The quantum effect provides a repulsive force in the core region near singularity which stabilizes the thermodynamically unstable small black holes. It also creates a zero temperature state with finite size which could be a candidate for dark matter. Moreover, there is a new second order phase transition between small and large black holes for quantum improved Schwarzschild-Anti de Sitter black holes. We also discuss the black holes with different spatial topologies and find a notable duality.

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Section: Asymptotically Anti-de Sitter Black Holessupporting

confidence: 79%

Phase Structure of Quantum Improved Schwarzschild-(Anti)de Sitter Black Holes

Chen¹,

Chen²,

Ishibashi³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…However, when ζ is larger than the critical value ζ 1 , both the local maximal and minimal temperatures disappear and all phases are stable. A similar swallow-tail pattern was observed in the asymptotically flat black holes [38] by using the identification proposed in [10].…”

Section: σ =supporting

confidence: 79%

Phase structure of quantum improved Schwarzschild-(Anti)de Sitter black holes

Chen,

Ishibashi

et al. 2023

Class. Quantum Grav.

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We study the phase structure of quantum improved Schwarzschild-(A)dS black holes in asymptotically safe gravity. Our results conﬁrm some of the well-known properties of quantum black holes. For example, the quantum eﬀect provides a repulsive force in the core region near singularity which stabilizes the thermodynamically unstable small black holes, and also creates a zero temperature state with ﬁnite size. We suggest that this could be a candidate for dark matter. We ﬁnd a new second order phase transition between small and large black holes for quantum improved Schwarzschild-Anti de Sitter black holes. We also discuss the black holes with diﬀerent spatial topologies and ﬁnd a notable duality.

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“…Classical radiation, dominated by the so-called quasinormal modes, of the above three spacetimes has been extensively studied in a great number of papers [22][23][24][25][26][27][28][29][30], and accurate quasinormal modes including overtones have been recently calculated in [31,32]. Nevertheless, to the best of our knowledge, the intensity of the quantum (Hawking) radiation of these black holes has not been considered, although general thermodynamic properties have been studied in [33][34][35].…”

Section: Introductionmentioning

confidence: 99%