Black hole remnants and dark matter

Chen, Pisin; Adler, Ronald J.

doi:10.1016/s0920-5632(03)02088-7

Cited by 191 publications

(167 citation statements)

References 17 publications

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“…5 Further citations on the GUP can be found in [24]. The reader might also find [25][26][27] as being helpful precursors to the upcoming analysis. 6 For an earlier discussion on interpreting black hole thermodynamics in a mircocanonical framework, see [28].…”

Section: Discussionmentioning

confidence: 99%

When conceptual worlds collide: The generalized uncertainty principle and the Bekenstein-Hawking entropy

2004

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Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking (black hole) entropy. In particular, many researchers have expressed a vested interest in fixing the coefficient of the sub-leading logarithmic term. In the current paper, we are able to make some substantial progress in this direction by utilizing the generalized uncertainty principle (GUP). Notably, the GUP reduces to the conventional Heisenberg relation in situations of weak gravity but transcends it when gravitational effects can no longer be ignored. Ultimately, we formulate the quantum-corrected entropy in terms of an expansion that is consistent with all previous findings. Moreover, we demonstrate that the logarithmic prefactor (indeed, any coefficient of the expansion) can be expressed in terms of a single parameter that should be determinable via the fundamental theory.

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Section: Discussionmentioning

confidence: 99%

When conceptual worlds collide: The generalized uncertainty principle and the Bekenstein-Hawking entropy

2004

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“…It is to say, the effective black hole entropy have the dependence on the energy of probe particle. Now, for large modified black holes, we use the characteristic temperature by identifying the energy of particles emitted from the black holes with the black hole's temperature [46,49,52,53], namely…”

Section: Entropy and Radiation Spectrum Of The Modified Black Holesmentioning

confidence: 99%

Hawking radiation and black hole entropy in a gravity’s rainbow

Liu

Zhu

2008

Gen Relativ Gravit

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In the context of gravity's rainbow, Planck scale correction on Hawking radiation and black hole entropy in Parikh and Wilczk's tunneling framework is studied. We calculate the tunneling probability of massless particles in the modified Schwarzschild black holes from gravity's rainbow. In the tunneling process, when a particle gets across the horizon, the metric fluctuation must be taken into account, not only due to energy conservation but also to spacetime Planck scale effect. Our results show that the emission rate is related to changes of the black hole's quantum corrected entropies before and after the emission. In the same time, for the modified black holes, a series of correction terms including a logarithmic term to Bekenstein-Hawking entropy are obtained. Correspondingly, the spectrum of Planck scale corrected emission is obtained and it deviates from the thermal spectrum. In addition, a specific form of modified dispersion relation is proposed and applied.

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“…In fact, Generalized Uncertainty Principle(GUP) prevents black holes from total evaporation and the ultimate phase of an evaporating black hole is a Planck size remnants. Evaporating Primordial black holes provide possible framework for such Planck size remnants [4]. Possible creation of black hole remnants in inflationary scenarios, ultrahigh energy cosmic ray (UHECR) airshowers and also in Large Hadronic Collider(LHC) have been investigated [5][6][7].…”

Section: Motivationmentioning

confidence: 99%

“…Here we are going to provide another model for creation of evaporating primordial black holes based on quantum cosmological considerations. The possible production of PBHRs in Hartle-Hawking quantum cosmology first has been emphasized by Chen and Adler [4]. However, they have not provided a thorough formulation of their conjecture.…”

Section: Motivationmentioning

confidence: 99%

“…The possible non-vanishing of energy-momentum tensor of signature change surface due to non-vanishing jump of the extrinsic curvature is described as a source of PBHs production. In section 3, following the arguments of Chen and Adler [4], we investigate the possible production of PBHRs in the signature change framework. Experimental and observational schemes for detection of PBHRs are discussed in section 4.…”

Section: Motivationmentioning

confidence: 99%

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A possible mechanism for production of primordial black holes in early universe

Nozari

2007

Astroparticle Physics

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Primordial Black Hole Remnants(PBHRs) can be considered as a primary source of cold dark matter. Hybrid inflation provides a possible framework for production of primordial black holes(PBHs) and these PBHs evaporate subsequently to produce PBHRs. In this paper we provide another framework for production of these PBHs. Using signature changing cosmological model and the generalized uncertainty principle as our primary inputs, first we find a geometric cosmological constant for early stage of universe evolution. This geometric cosmological constant can lead to heavy vacuum density which may be interpreted as a source of PBHs production during the inflationary phase. In the next step, since it is possible in general to have non-vanishing energy-momentum tensor for signature changing hypersurface, this non-vanishing energy-momentum tensor can be considered as a source of PBHs production. These PBHs then evaporate via the Hawking process to produce PBHRs. Finally, possible observational schemes for detecting relics of these PBHRs are discussed. PACS Numbers: 98.80. Qc, 95.35.+d

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Black hole remnants and dark matter

Cited by 191 publications

References 17 publications

When conceptual worlds collide: The generalized uncertainty principle and the Bekenstein-Hawking entropy

When conceptual worlds collide: The generalized uncertainty principle and the Bekenstein-Hawking entropy

Hawking radiation and black hole entropy in a gravity’s rainbow

A possible mechanism for production of primordial black holes in early universe

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