Results 131 to 140 of about 2,808 (218)

Dynamical system analysis of interacting dark energy in LRS Bianchi type I cosmology. [PDF]

Sci Rep, 2023
Rathore S, Singh SS.
europepmc   +1 more source

Coupled quantum systems in inflationary cosmology.

, 2010
University of Minnesota Ph.D. dissertation. August 2010. Major: Physics. Advisor: Shaul Hanany. 1 computer file (PDF); vii, 197 pages, appendices A-G. Ill. (some col.)The studies presented in this thesis describe applications of quantum field theory in a
Gumrukcuoglu, Ahmet Emir
core  

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Cosmology in the mimetic higher-curvature [Formula: see text] gravity. [PDF]

Sci Rep, 2021
Kaczmarek AZ, Szczȩśniak D.
europepmc   +1 more source

Starobinsky potential and power suppression in hybrid loop quantum cosmology

Physics Letters B
We study the effect on the primordial tensor power spectrum of varying the number of e-folds during slow-roll inflation in Loop Quantum Cosmology with a Starobinsky potential. Using the hybrid quantization approach, we derive the effective mass governing
Marceau Henry, Guillermo A. Mena Marugán, Antonio Vicente-Becerril   +2 more
doaj   +1 more source

Recent Progress In String Inflationary Cosmology

, 2007
Super--inflation driven by dilaton/moduli kinetic energy is naturally realized in compactified string theory. Discussed are selected topics of recent development in string inflationary cosmology: kinematics of super-inflation, graceful exit triggered by ...
Soo-jong Rey
core  

Applications of cosmological perturbation theory

, 2011
PhDCosmological perturbation theory is crucial for our understanding of the universe. The linear theory has been well understood for some time, however developing and applying the theory beyond linear order is currently at the forefront of research in
Christopherson, Adam J.
core  

A bouncing cosmology from VECROs. [PDF]

Eur Phys J C Part Fields, 2023
Brandenberger R, Mitchell GA.
europepmc   +1 more source

Novel Possibility of Nonstandard Statistics in the Inflationary Spectrum of Primordial Inhomogeneities

Symmetry, Integrability and Geometry: Methods and Applications, 2012
Inflation is considered one of the cornerstones of modern cosmology. However, the account of the origin of cosmic structure, as provided by the standard inflationary paradigm, is not fully satisfactory. The fundamental issue is the inability of the usual
Gabriel León, Daniel Sudarsky
doaj   +1 more source

Scale invariant power spectrum in Horava-Lifshitz cosmology without matter

, 2009
In this paper we investigate the physical implications of the dynamical scalar mode in pure Horava-Lifshitz gravity on cosmology. We find that it can produce a scale-invariant power spectrum in UV era if the detailed balance condition on the action is ...
Chen, Bin, Pi, Shi, Tang, Jin-Zhang
core   +1 more source