Results 121 to 130 of about 59,420 (206)
Multiple-scales analysis of cosmological perturbations in brane-worlds [PDF]
, 2004 Richard A. Battye, Andrew Mennim
openalex +1 more source
Evolution of perturbations in a domain wall cosmology [PDF]
, 2003 J. C. Fabris +1 more
openalex +1 more source
Integrated perturbation theory for cosmological tensor fields. II. Loop corrections [PDF]
, 2022 Takahiko Matsubara
openalex +1 more source
Stability of the de-Sitter spacetime. The anisotropic case
Physics Letters BWe elaborate on the cosmological implications of the recently established non-perturbative O(D,D)-symmetric approach. Following the α′-complete Friedmann equations, we provide a qualitative description of the dynamics of anisotropy perturbations. We find
Przemysław Bieniek +3 more
doaj +1 more source
Cosmological perturbations in inflationary models with anisotropic space-time scaling in a Lifshitz background [PDF]
, 2013 Mohsen Alishahiha +3 more
openalex +1 more source
The entropy of dynamical de Sitter horizons
European Physical Journal C: Particles and FieldsWe propose a new formula for the entropy of a dynamical cosmological event horizon, which is valid to leading order for perturbations of a stationary asymptotically de Sitter spacetime.
Jinan Zhao
doaj +1 more source
Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations. [PDF]
Eur Phys J C Part Fields, 2015 Eingorn M, Brilenkov M, Vlahovic B.
europepmc +1 more source
Processing of cosmological perturbations in a cyclic cosmology [PDF]
, 2009 Robert Brandenberger
openalex +1 more source
Primordial gravitational waves assisted by cosmological scalar perturbations
European Physical Journal C: Particles and FieldsPrimordial gravitational waves are a crucial prediction of inflation theory, and their detection through their imprints on the cosmic microwave background is actively being pursued. However, these attempts have not yet been successful.
Yan-Heng Yu, Sai Wang
doaj +1 more source