Results 121 to 130 of about 108,791 (169)

The singular status of spacetime singularities in quantum gravity [PDF]

Spacetime singularities are expected to disappear in quantum gravity. Singularity resolution prima facie supports the view that spacetime singularities are mathematical pathologies of general relativity.
Pedroni, Marta
core  

The motion of point particles in curved spacetime

, 2011
This review is concerned with the motion of a point scalar charge, a point electric charge, and a point mass in a specified background spacetime. In each of the three cases the particle produces a field that behaves as outgoing radiation in the wave zone,
Pound, Adam, Poisson, Eric, Vega, Ian
core   +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

On cosmological singularities in string theory

Journal of High Energy Physics
We study the time evolution of a 3 + 1 dimensional spacetime, where space is a large three-sphere, due to small perturbations of the background fields. We focus on two classes of deformations.
Jinwei Chu, David Kutasov
doaj   +1 more source

What Branching Spacetime Might Do for Physics [PDF]

, 2007
In recent years, the branching spacetime (BST) interpretation of quantum mechanics has come under study by a number of philosophers, physicists and mathematicians. This paper points out some implications of the BST interpretation for two areas of quantum
Sharlow, Mark
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On the topology of a resolution of isolated singularities

, 2017
et Y be a complex projective variety of dimension n with isolated singularities, \pi:X->Y a resolution of singularities, G the exceptional locus.
Franco, Davide, DI GENNARO, VINCENZO, Franco Davide, Digennaro, Vincenzo, DI GENNARO, V, Vincenzo Di Gennaro, Davide Franco, Franco, D   +7 more
core   +1 more source

Polarization singularities in paraxial vector fields: morphology and statistics

, 2002
Polarization patterns in the transverse plane generically contain singularities: points of circular polarization (C points), lines of linear polarization (L lines), instantaneous zeros (disclinations) and component zeros.
Dennis, MR, Dennis, M.R., M. R. Dennis, Dennis, Mark; id_orcid   +3 more
core   +1 more source

Broken Symmetry and Spacetime [PDF]

, 2009
The phenomenon of broken spacetime symmetry in the quantum theory of infinite systems seems to point toward an unorthodox ontology. The standard conception of the physical meaning of these symmetries, as changes in coordinates, conflicts with the ...
Baker, David John, David John Baker
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Relational Spacetime Ontology [PDF]

, 2006
In the aftermath of the rediscovery of Einstein’s hole argument by Earman and Norton (1987), we hear that the ontological relational/substantival debate over the status of spacetime seems to have reached stable grounds. Despite Einstein’s early intention
Cala Vitery, Favio
core  

Kulikov singularities

, 2018
In the study of normal surface singularities the relation between analytical and topological properties and invariants of the singularity is a very rich problem.
Stevens, Jan, Stevens, Jan,
core   +1 more source