Results 111 to 120 of about 380,547 (242)
The Flow of Information in Cosmological Models [PDF]
, 1959 A. W. K. Metzner +2 more
openalex +1 more source
Classical and Quantum GravityAbstract We study the static patch of de Sitter space in the presence of a timelike boundary. We impose that the conformal class of the induced metric and the trace of the extrinsic curvature, K, are fixed at the boundary. We present the thermodynamic structure of de Sitter space subject to these boundary conditions, for static and ...
Dionysios Anninos +2 more
openaire +3 more sources
Dynamical dark energy in 0’B braneworlds
European Physical Journal C: Particles and FieldsWe build a novel realization of dark bubble cosmology in non-supersymmetric string theory. Among the simplest models in ten dimensions, the type 0’B orientifold is the unique option which yields a scale-separated construction.
Ivano Basile +2 more
doaj +1 more source
Discrete isotropies in a class of cosmological models [PDF]
, 1969 Bernd Schmidt
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Cosmological Significance of the Relation between Red-shift and Flux Density for Quasars [PDF]
, 1966 D. W. Sciama, M. J. Rees
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, 2015 We discuss the possibility to implement a viscous cosmological model, attributing to the dark matter component a behaviour described by bulk viscosity.
Barbosa, C. M. S. +4 more
core
European Physical Journal C: Particles and FieldsMultiple pulsar timing array (PTA) collaborations, including the European PTA in partnership with the Indian PTA, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), the Parkes PTA, and the Chinese PTA have recently reported ...
Qin Tan, You Wu, Lang Liu
doaj +1 more source
, 2005 Recent breakthroughs in cosmology pose questions that require particle physics answers. I review the problems of dark matter, baryogenesis, and dark energy and discuss how particle colliders, particularly the International Linear Collider, may advance ...
Feng, Jonathan L.
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