Results 261 to 270 of about 197,098 (270)

Inhomogeneous cosmologies with cosmological constant

Physics Letters A, 1984
Abstract We give a new class of exact inhomogeneous solutions to Einstein's equations with non-zero cosmological constant and zero pressure. They generalize the de Sitter space-time and evolve towards a state that is stationary inside the event horizon of any future inextendible time-like curve and confirm the cosmic “no hair” conjecture.
John D. Barrow, J. Stein-Schabes
openaire   +1 more source

THE COSMOLOGICAL CONSTANT PROBLEM

International Journal of Modern Physics D, 1992
The cosmological constant is a macroscopic parameter which controls the large-scale structure of the Universe. All observations to date have shown that it is very small. However, our modern microscopic theory of particle physics and gravity suggests that the cosmological constant should be very large.
openaire   +1 more source

Cosmological constant

2017
Abstract The contribution of vacuum fluctuations to the cosmological constant is reconsidered studying the dependence on the used regularisation scheme. Then alternative explanations for the observed accelerated expansion of the universe in the present epoch are introduced which either modify gravity or add a new component of matter ...
openaire   +1 more source

Varying Newton gravitational “constant” cosmology

Annals of Physics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Clovis Jacinto de Matos, Nicolas Lori
openaire   +2 more sources

Cosmological constant as integration constant

Astronomische Nachrichten, 1994
AbstractEinstein's field theory of elementary particles (Einstein 1919) yields black holes with a mass M ˜ G−1 Λ−1/2c2 and a charge Q ˜ G−1/2λ−1/2c2, their curvatu re radius is Λ−1/2. Here 4Λ is an integration constant of Einstein's ‘trace‐less’ gravitation equations.The choice λ = G−1h−1c3 for this constant defines Planckions and implies “strong ...
openaire   +1 more source

Cosmological Constant And Cosmological Quintessence

Extended Study 
Philippakis, Theodore, Raptis, George
openaire   +1 more source

Cosmological constant

Nuclear Physics B - Proceedings Supplements, 2000
openaire   +1 more source

Cosmological Constant

2018
openaire   +1 more source

Cosmology without a cosmological constant

2018
openaire   +1 more source

The cosmological constant

1999
openaire   +1 more source