Inflation induced Planck-size black hole remnants as dark matter

Chen, Pisin

doi:10.1016/j.newar.2005.01.015

Cited by 62 publications

(76 citation statements)

References 33 publications

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“…For example a simple calculation based on hybrid inflation suggests that the time it took for black holes to reduce to remnants is about 10 −10 Sec. Thus primordial black holes have been produced before baryogenesis and subsequent epochs in the standard cosmology [35]. The events that can potentially lead to black hole production are essentially high-energy scattering in particle colliders and UHECR.…”

Section: Black Holes Remnants and Extra Dimensionsmentioning

confidence: 99%

Black Holes Remnants in Extra Dimensions and Dark Matter

Nozari

Mehdipour

2006

Int. J. Mod. Phys. A

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Bekenstein-Hawking formalism of black hole thermodynamics should be modified to incorporate quantum gravitational effects. Generalized Uncertainty Principle(GUP) provides a suitable framework to perform such modifications. In this paper, we consider a general form of GUP to find black hole thermodynamics in a model universe with large extra dimensions. We will show that black holes radiate mainly in the four-dimensional brane. Existence of black holes remnants as a possible candidate for dark matter is discussed.

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Section: Black Holes Remnants and Extra Dimensionsmentioning

confidence: 99%

Black Holes Remnants in Extra Dimensions and Dark Matter

Nozari

Mehdipour

2006

Int. J. Mod. Phys. A

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“…This change of equation of state can change the scale factor from an exponential to a power-law form. In this situation apparently there is no horizon paradox [4,17]. Suppose that this transition occurs at a continuous energy density change.…”

Section: Non-vanishing Energy-momentum Tensor Of Signature Change Hypmentioning

confidence: 99%

“…This heavy vacuum density can be considered as a source of PBHs production during inflationary era [17].…”

Section: A Geometric Cosmological Constantmentioning

confidence: 99%

“…For example a simple calculation based on hybrid inflation suggests that the time it took for black holes to reduce to remnants is about 10 −10 Sec. Thus primordial black holes have been produced before baryogenesis and subsequent epochs in the standard cosmology [17]. The events that can potentially lead to black hole production are essentially high-energy scattering in particle colliders and UHECR.…”

Section: Schemes For Possible Detection Of Primordial Black Holes Remmentioning

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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“…In the Universe with non-zero background cosmological constant λ (vacuum dark energy) dark matter is represented by regular cosmological black holes [43], their remnants [34], and vacuum gravitational solitons G-lumps [32,38]. These compact objects can originate in the early universe in a way similar to inflation induced (singular) Planck-size black hole remnants [44] and primordial black holes [45].…”

Section: Introductionmentioning

confidence: 99%

Regular black hole remnants and graviatoms with de Sitter interior as heavy dark matter candidates probing inhomogeneity of early universe

Dymnikova

Khlopov

2015

Int. J. Mod. Phys. D

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We address the question of regular primordial black holes with de Sitter interior, their remnants and gravitational vacuum solitons G-lumps as heavy dark matter candidates providing signatures for inhomogeneity of early Universe, which is severely constrained by the condition that the contribution of these objects in the modern density doesn't exceed the total density of dark matter. Primordial black holes and their remnants seem to be most elusive among dark matter candidates. However, we reveal a nontrivial property of compact objects with de Sitter interior to induce proton decay or decay of neutrons in neutron stars. The point is that they can form graviatoms, binding electrically charged particles. Their observational signatures as dark matter candidates provide also signatures for inhomogeneity of the early Universe. In graviatoms the cross section of the induced proton decay is strongly enhanced, what provides the possibility of their experimental searches. We predict proton decay paths induced by graviatoms in the matter as an observational signature for heavy dark matter searches at the IceCUBE experiment.

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Inflation induced Planck-size black hole remnants as dark matter

Cited by 62 publications

References 33 publications

Black Holes Remnants in Extra Dimensions and Dark Matter

Black Holes Remnants in Extra Dimensions and Dark Matter

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

Regular black hole remnants and graviatoms with de Sitter interior as heavy dark matter candidates probing inhomogeneity of early universe

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