Results 11 to 20 of about 60,199 (278)
Non-minimal coupling influence on the deviation from de Sitter cosmological expansion
European Physical Journal C: Particles and Fields, 2018 We investigate the models of cosmological inflation in generalized scalar–tensor gravity, which we consider as a source of deviation from de Sitter dynamics in the case of GR.
I. V. Fomin, S. V. Chervon
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Quantum Gravity and Cosmological Density Perturbations [PDF]
Galaxies, 2014 We explore the possible cosmological consequences of a running Newton’s constant, G(⎕), as suggested by the non-trivial ultraviolet fixed point scenario for Einstein gravity with a cosmological constant term.
Herbert W. Hamber, Reiko Toriumi
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Quantum State Evolution in an Environment of Cosmological Perturbations
Universe, 2021 We study the pure and thermal states of quantized scalar and tensor perturbations in various epochs of Universe evolution. We calculate the density matrix of non-relativistic particles in an environment of these perturbations.
Zbigniew Haba
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Scalar cosmological perturbations [PDF]
Classical and Quantum Gravity, 2012 Scalar perturbations of Friedmann-Lemaitre cosmologies can be analyzed in a variety of ways using Einstein's field equations, the Ricci and Bianchi identities, or the conservation equations for the stress-energy tensor, and possibly introducing a timelike reference congruence.
Uggla, Claes, Wainwright, John
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Physics Letters B, 2022 Parity violating models based on the symmetric teleparallel gravity have been considered in the literature, but their applications in cosmology and especially the features in cosmological perturbations have not been fully explored.
Mingzhe Li, Dehao Zhao
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Linear cosmological perturbations in scalar-tensor-vector gravity
Physics Letters B, 2020 We investigate the cosmological perturbations in the context of a Scalar-Tensor-Vector theory of Gravity known as MOG in the literature. Recent investigations show that MOG reproduces a viable background cosmological evolution comparable to ΛCDM. However,
Sara Jamali +2 more
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No Intrinsic Decoherence of Inflationary Cosmological Perturbations
Universe, 2022 After a brief summary of the four main veins in the treatment of decoherence and quantum to classical transition in cosmology since the 1980s, we focus on one of these veins in the study of quantum decoherence of cosmological perturbations in ...
Jen-Tsung Hsiang, Bei-Lok Hu
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Cosmological perturbations in antigravity [PDF]
Physical Review D, 2014 15 pages, a few references ...
Oltean, Marius, Brandenberger, Robert
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Relativistic Hydrodynamic Cosmological Perturbations [PDF]
General Relativity and Gravitation, 1999 16 pages, no figure, To appear in Gen.
Hwang, Jai-chang, Noh, Hyerim
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Cosmological perturbation theory revisited [PDF]
Classical and Quantum Gravity, 2011 29 pages, no figures, minor ...
Uggla, Claes, Wainwright, John
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