Results 101 to 110 of about 531,343 (389)
Trans-Planckian censorship and inflationary cosmology [PDF]
Physical Review D, 2019 We study the implications of the recently proposed Trans-Planckian Censorship Conjecture (TCC) for early universe cosmology and in particular inflationary cosmology.
Alek Bedroya +3 more
semanticscholar +1 more source
International Journal of Modern Physics: Conference Series, 2012 We review the difficulties of the generalized Chaplygin gas model to fit observational data, due to the tension between background and perturbative tests. We argue that such issues may be circumvented by means of a self-interacting scalar field representation of the model.
Julio C. Fabris +4 more
openaire +4 more sources
The European Physical Journal C, 2023 AbstractUsing arguments from holography we propose that the deviation of the cosmological spectral index $$n_S$$ n S of scalar fluctuations from unity may be controlled almost entirely by the critical exponent $$\eta $$ η of
Irges, Nikos +2 more
openaire +3 more sources
The Implementation, Interpretation, and Justification of Likelihoods in Cosmology [PDF]
, 2017 I discuss the formal implementation, interpretation, and justification of likelihood attributions in cosmology. I show that likelihood arguments in cosmology suffer from significant conceptual and formal problems that undermine their applicability in ...
Albert +77 more
core +4 more sources
A Multifaceted Spatial Analysis of Tomb Distribution in Blemmyan Berenike (Eastern Desert of Egypt)
Archaeological Prospection, EarlyView.ABSTRACT This study examines the spatial and visual organisation of tombs in the post–Roman Berenike located in Egypt's Eastern Desert. Archaeological surveys, remote sensing, geophysical methods, excavations and GIS‐based analyses are used for a comprehensive understanding of the spatial patterns and cultural significance behind the positions and ...
Mariusz Gwiazda +4 more
wiley +1 more source
Cosmology in f(Q) geometry [PDF]
, 2019 The universal character of the gravitational interaction provided by the equivalence principle motivates a geometrical description of gravity. The standard formulation of General Relativity a la Einstein attributes gravity to the spacetime curvature, to ...
J. Jim'enez +3 more
semanticscholar +1 more source
EPJ Web of Conferences, 2013 Time has always played a crucial role in cosmology. I review some of the aspects of the present cosmological model which are more directly related to time, such as: the definition of a cosmic time; the existence of typical timescales and epochs in an expanding universe; the problem of the initial singularity and the origin of time; the cosmological ...
openaire +4 more sources
Cosmological parameter estimation and the inflationary cosmology [PDF]
Physical Review D, 2002 15 pages RevTeX file with figures incorporated. Slow-roll inflation module for use with the CAMB program can be found at http://astronomy.cpes.susx.ac.uk/~sleach/inflation/ This version corrects a typo in the definition of z_S (after Eq.1) and supersedes the journal ...
Leach, SM +3 more
openaire +3 more sources
String cosmology versus standard and inflationary cosmology
, 2000 This paper presents a review of the basic, model-independent differences between the pre-big bang scenario, arising naturally in a string cosmology context, and the standard inflationary scenario.
't Hooft G +53 more
core +1 more source
Energy Science &Engineering, EarlyView.ABSTRACT The study of nanofluids has attracted significant attention due to their superior thermophysical properties, making them ideal for thermal transport in engineering and biomedical applications. Motivated by these capabilities, this study develops a novel three‐dimensional mathematical model for electrically conducting Sutterby nanofluids ...
A. M. Obalalu +4 more
wiley +1 more source