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Inhomogeneous cosmologies with cosmological constant
Physics Letters A, 1984Abstract 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
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The Cosmological Constant in Quantum Cosmology
AIP Conference Proceedings, 2008Hawking proposed that the cosmological constant is probably zero in quantum cosmology in 1984. By using the right configuration for the wave function of the universe, a complete proof is found very recently.
Zhong Chao Wu +3 more
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Astrophysics and Space Science, 2003
We review varying speed of light (VSL) theories, in a cosmological and astrophysical setting, and as phenomenological descriptions of quantum gravity. We first introduce two observational puzzles, and explain how they may related to VSL. We then catalogue the various theoretical efforts associated with VSL. We focus on recent VSL theories rendering the
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We review varying speed of light (VSL) theories, in a cosmological and astrophysical setting, and as phenomenological descriptions of quantum gravity. We first introduce two observational puzzles, and explain how they may related to VSL. We then catalogue the various theoretical efforts associated with VSL. We focus on recent VSL theories rendering the
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Exponentially Small Cosmological Constant in String Theory
Physical Review Letters, 2022Liam McAllister +2 more
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Quantum Cosmology and the Cosmological Constant
1991The origin of our universe and the small scale structure of spacetime lie deep in the realm of quantum theory, yet they seem to relate to the large scale features of the universe. The value of the cosmological constant is probably zero, but a small value related to a light particle mass is possible.
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Revisiting a Negative Cosmological Constant from Low-Redshift Data
Symmetry, 2019Luca Visinelli +2 more
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Screening of cosmological constant in non-local gravity
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011Misao Sasaki +2 more
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Cosmological Constant and Fundamental Length
American Journal of Physics, 1971James L Anderson
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