Dark bubbles and black holes

Banerjee, Souvik; Danielsson, Ulf H.; Giri, Suvendu

doi:10.1007/jhep09(2021)158

Cited by 15 publications

(6 citation statements)

References 28 publications

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“…With (string-scale) supersymmetry breaking, however, one naturally finds nucleating branes in metastable AdS vacua [27], yielding dS braneworld cosmologies [107]. These provide the first known string construction of the dS bubble scenario studied by [108][109][110][111][112][113][114] from a bottom-up perspective.…”

Section: Discussionmentioning

confidence: 99%

Revisiting Dudas-Mourad Compactifications

2022

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Superstring theories in ten dimensions allow spacetime supersymmetry breaking at the string scale at the expense of controlled Minkowski backgrounds. The next-to-maximally symmetric backgrounds, found by Dudas and Mourad, involve a warped compactification on an interval associated with codimension-one defects. We generalize these solutions by varying the effective field theory parameters, and we discuss the dimensional reduction on the interval. In particular, we show that scalars and form fields decouple in a certain range of dimensions, yielding Einstein-Yang-Mills theory. Moreover, we find that the breakdown of this effective description due to light Kaluza-Klein modes reflects the swampland distance conjecture, supporting the consistency of the picture at least qualitatively.

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Section: Discussionmentioning

confidence: 99%

Revisiting Dudas-Mourad Compactifications

2022

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“…quasi-extremal tension-to-charge ratios of the bubble. This scenario reproduces important features of gravitational interactions at long distances [21][22][23][24][25], and it can be constructed in non-supersymmetric settings in string theory [26,27]. One of the most important problems in dark bubble cosmology, first introduced in [4], is to understand the uplift of four dimensional matter fields compatible with the standard model of particle physics into the higher dimensions.…”

Section: Jhep02(2024)112mentioning

confidence: 78%

“…Hence, the Einstein equation in the form (5.2) is preserved throughout. 24 Physically, this means the following. Let us assume matter associated with the brane such as the electromagnetic fields studied in this paper.…”

Section: Jhep02(2024)112mentioning

confidence: 99%

Shedding light on dark bubble cosmology

Basile,

Danielsson,

Giri

et al. 2024

J. High Energ. Phys.

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Dark bubble cosmology is an alternative paradigm to compactification, which can circumvent issues of moduli stabilization and scale separation. In this paper we investigate how electromagnetic fields can be incorporated in this framework. Worldvolume fields backreact on the ambient universe in which the bubble expands, which in turn affects the energy-momentum distribution and the effective gravity induced on the brane. We compute these effects, showing that the resulting four-dimensional cosmology consistently includes electromagnetic waves.

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“…See[6][7][8][9][10] for other approaches to this problem, and[11,12] for the addition of rotation 2. The CFT on the spherical universe has a gap at any N and any coupling and exhibits 'kinematic confinement', but this is not enough to explain the effect we discuss 3.…”

mentioning

confidence: 98%

Holographic duals of evaporating black holes

Luna¹,

Suzuki²,

Tomašević³

et al. 2023

Preprint

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We describe the dynamical evaporation of a black hole as the classical evolution in time of a black hole in an Anti-de Sitter braneworld. A bulk black hole whose horizon intersects the brane yields the classical bulk dual of a black hole coupled to quantum conformal fields. The evaporation of this black hole happens when the bulk horizon slides off the brane, making the horizon on the brane shrink. We use a large-D effective theory of the bulk Einstein equations to solve the time evolution of these systems. With this method, we study the dual evaporation of a variety of black holes interacting with colder radiation baths. We also obtain the dual of the collapse of holographic radiation to form a black hole on the brane. Finally, we discuss the evolution of the Page curve of the radiation in our evaporation setups, with entanglement islands appearing and then shrinking during the decreasing part of the curve.

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Dark bubbles and black holes

Cited by 15 publications

References 28 publications

Revisiting Dudas-Mourad Compactifications

Revisiting Dudas-Mourad Compactifications

Shedding light on dark bubble cosmology

Holographic duals of evaporating black holes

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