Results 161 to 170 of about 7,281 (260)
Primordial black holes in non-linear perturbation theory
, 2009 PhDThe thesis begins with a study of the origin of non-linear cosmological fluctuations. In particular, a class of models of multiple field inflation are considered, with specific reference to those cases in which the non-Gaussian correlation functions
Hidalgo-Cuellar, Juan Carlos
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Extended defects in curved spacetimes [PDF]
, 1999 This Thesis is concerned with three particular aspects of extended cosmic strings and domain walls in cosmology: their dynamics, gravitation and interaction with a black hole. In Chapter 3, we study the dynamics of an abelian-Higgs cosmic string. We find
Bonjour, F., Bonjour, Filipe
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Black Holes and (0,4) SCFTs from Type IIB on K3
, 2019 We study the central charges and levels of 2d $\mathcal{N}=(0,4)$ superconformal field theories that are dual to four- and five-dimensional BPS black holes in compactifications of type IIB string theory on a K3 surface.
Sub String Theory Cosmology and ElemPart +6 more
core +1 more source
Charged AdS black holes in presence of string cloud and Cardy-Verlinde formula
Nuclear Physics BIn this study, charged AdS black holes with a string cloud are taken into consideration. We identify three distinct black hole solutions within a specific temperature range, which subsequently merge into a single black hole beyond this range in the case ...
Rishi Pokhrel, Tanay K. Dey
doaj +1 more source
, 1997 9 pages, LaTeX, uses included style file `weird.sty', to appear in the proceedings of the 7th Canadian Conference on General Relativity and Relativistic Astrophysics, June 5-7 ...
openaire +2 more sources
Quantum Black Holes: Some static and dynamical aspects
, 2017 With the aim of understanding single-center black hole entropy in \mathcal{N}=2 compactifications in string theory, we study the lowest lying states in the dual conformal field theories.
Gaddam, N.K. +2 more
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Trapped string states in AdS5 black hole geometry: a path toward Hawking radiation
Journal of High Energy PhysicsWe investigate the quantum dynamics of a closed bosonic string in the curved spacetime of an AdS5-Schwarzschild black hole. Starting from the Polyakov action, we perform a canonical quantization of the string and formulate its quantum mechanical equation
Harpreet Singh, Malay K. Nandy
doaj +1 more source
, 2019 Black holes are the hydrogen atoms of quantum gravity. For instance solving the information loss paradox will likely require a deep understanding of how the long-sought quantum gravity theory works. In this thesis we explore how black holes are modelled and how the quantum structure emerges in the context of string theory.
openaire +2 more sources
Gravitational waves in the Myers-Perry geometry
Journal of High Energy PhysicsWe analyze equations describing gravitational waves in the Myers-Perry and Gibbons-Lu-Page-Pope geometries with arbitrary rotation parameters. Assuming that at least one rotation parameter vanishes, we demonstrate full separability of equations for ...
Oleg Lunin
doaj +1 more source
DILATONIC BLACK HOLES IN HETEROTIC STRING THEORY
The Twelfth Marcel Grossmann Meeting, 2012 Fundacao para a Ciencia e a Tecnologia (FCT) - project PTDC/EIA/67661/2006 - CMAT - Financiamento ...
openaire +2 more sources