Results 101 to 110 of about 35,096 (197)

Past incompleteness of a bouncing multiverse

, 2014
According to classical GR, Anti-de Sitter (AdS) bubbles in the multiverse terminate in big crunch singularities. It has been conjectured, however, that the fundamental theory may resolve these singularities and replace them by nonsingular bounces.
Vilenkin, Alexander, Zhang, Jun
core   +1 more source

The Analysis of Singular Spacetimes [PDF]

Philosophy of Science, 1999
Much controversy surrounds the question of what ought to be the proper definition of ‘singularity’ in general relativity, and the question of whether the prediction of such entities leads to a crisis for the theory. I argue that a definition in terms of curve incompleteness is adequate, and in particular that the idea that singularities correspond to ...
openaire   +2 more sources

End of the world brane networks for infinite distance limits in CY moduli space

Journal of High Energy Physics
Dynamical Cobordism provides a powerful method to probe infinite distance limits in moduli/field spaces parameterized by scalars constrained by generic potentials, employing configurations of codimension-1 end of the world (ETW) branes.
Roberta Angius
doaj   +1 more source

Stringy effects and the role of the singularity in holographic complexity

Journal of High Energy Physics, 2019
There has been considerable recent interest in holographic complexity. The two leading conjectures on this subject hold that the quantum complexity of the boundary thermofield double state should be dual to either the volume of the Einstein-Rosen bridge ...
Richard Nally
doaj   +1 more source

Global Spacetime Structure [PDF]

, 2011
Here, we outline the basic structure of relativistic spacetime and record a number of facts. We then consider a distinction between local and global spacetime properties and provide important examples of each.
Manchak, John Byron
core  

Observers in Kerr spacetimes: the ergoregion on the equatorial plane

, 2018
We perform a detailed analysis of the properties of stationary observers located on the equatorial plane of the ergosphere in a Kerr spacetime, including light-surfaces.
Pugliese, D., Quevedo, H.
core   +1 more source

Directional Quantum Singularities in Curzon Spacetime

Universe
The scalar quantum probe method developed by Horowitz and Marolf is applied to the cylindrically symmetric Curzon solution. The main cause for choosing the Curzon solution is that it is the best-known example that exhibits directional singularity ...
Mert Mangut, Ozay Gurtug, Mustafa Halilsoy   +2 more
doaj   +1 more source

A Primer on Spacetime Singularities I: Mathematical Framework

Universe
This article presents a comprehensive and rigorous overview of spacetime singularities within the framework of classical General Relativity. Singularities are defined through the failure of geodesic completeness, reflecting the limits of predictability ...
Jean-Pierre Luminet
doaj   +1 more source

On some universal features of the holographic quantum complexity of bulk singularities

Journal of High Energy Physics, 2018
We perform a comparative study of the time dependence of the holographic quantum complexity of some space like singular bulk gravitational backgrounds.
Stefano Bolognesi, Eliezer Rabinovici, Shubho R. Roy   +2 more
doaj   +1 more source

Spacetime singularities and indeterminism

Synthese
Abstract We argue for the claim that spacetime singularities in general relativity (GR) signal indeterminism, broadly construed. We first develop a schema for diagnosing a type of indeterminism for physical theories, which we denote by Indeterminism.
Feraz Azhar, Mohammad Hossein Namjoo
openaire   +1 more source