Results 1 to 10 of about 32,779 (246)

Inflationary Cosmology in RS-I [PDF]

Brazilian Journal of Physics, 2005
In this work, I intend to show a possible candidate of inflaton potential $V(\phi)$ in a scenario of a brane world defined by a pair of branes (RS-I).Comment: 2 pages, 2 figures, 100 years of relativity international conference on classical and quantum
Figueiró, Michele Ferraz
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Relaxing the TCC bound on inflationary cosmology? [PDF]

European Physical Journal C: Particles and Fields, 2020
We demonstrate that the strict upper bounds on the energy scale of inflation and on the tensor-to-scalar ratio can be somewhat relaxed if we assume that – after an initial period of slow rolling when scales probed today in CMB experiments exit the Hubble
Vahid Kamali, Robert Brandenberger
doaj   +2 more sources

Looking Beyond Inflationary Cosmology [PDF]

Canadian Journal of Physics, 2005
In spite of the phenomenological successes of the inflationary universe scenario, the current realizations of inflation making use of scalar fields lead to serious conceptual problems which are reviewed in this lecture.
Adams K., Albrecht P., Alexander R.H., Battefeld S., Bennett M., Berndsen J.M., Biswas R., Borde A., Brandenberger, Brandenberger, Brandenberger C., Brandenberger D.A., Brandenberger D.A., Brandenberger J.H., Brandenberger P.M., Brout F., Burgess J.M., Chu B.R., Corley T., Durrer M., Easson M., Easther B.R., Easther B.R., Feldman R.H., Gasperini G., Giddings S., Goldwirth T., Kallosh L., Kempf J.C., Khoury B.A., Kripfganz H., Majumdar A.-C., Mazenko R.M., Mukhanov G.V., Mukhanov H.A., Patil, R H Brandenberger, Randall, Smoot C.L., Tsamis R.P., Tseytlin C., Watson, Watson R.H.   +42 more
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Inflationary Cosmology [PDF]

, 2001
The big bang model and the history of the early universe according to the grand unified theories are introduced. The shortcomings of big bang are discussed together with their resolution by inflationary cosmology.
Lazarides, G.
core   +3 more sources

Particle decay in inflationary cosmology [PDF]

, 2004
We investigate the relaxation and decay of a particle during inflation by implementing the dynamical renormalization group. This investigation allows us to give a meaningful definition for the decay rate in an expanding universe.
A. R. Liddle, D. Boyanovsky, D. Boyanovsky, E. W. Kolb, H. J. de Vega, N. D. Birrell, P. Coles, S. Matarrese   +7 more
core   +3 more sources

Inflationary Cosmology: Theory and Phenomenology [PDF]

Classical and Quantum Gravity, 2001
This article gives a brief overview of some of the theory behind the inflationary cosmology, and discusses prospects for constraining inflation using observations.
, Albrecht A, Andrew R Liddle, Brandenberger R, Bunn E F, Efstathiou G, Frieman J, Gott J R, Kallosh R, Khoury J, Lahav O, Lasenby A, Liddle A R, Netterfield C B, Schmidt B P, Turok N, Vilenkin A, Wands D, Wang X   +18 more
core   +3 more sources

Inflationary observables in loop quantum cosmology [PDF]

, 2011
The full set of cosmological observables coming from linear scalar and tensor perturbations of loop quantum cosmology is computed in the presence of inverse-volume corrections.
Bojowald, Martin, Calcagni, Gianluca
core   +5 more sources

Inflationary Cosmology and Oscillating Universes in Loop Quantum Cosmology [PDF]

, 2004
We study oscillatory universes within the context of Loop Quantum Cosmology. We make a comparative study of flat and positively curved universes sourced by scalar fields with either positive or negative potentials.
Bojowald M., Bojowald M., DAVID J. MULRYNE, JAMES E. LIDSEY, Kanekar N., Lidsey J. E., N. J. NUNES, REZA TAVAKOL, Rovelli C., Singh P.   +9 more
core   +2 more sources

Trans-Planckian Issues for Inflationary Cosmology [PDF]

, 2012
The accelerated expansion of space during the period of cosmological inflation leads to trans-Planckian issues which need to be addressed. Most importantly, the physical wavelength of fluctuations which are studied at the present time by means of ...
Brandenberger, Robert, Martin, Jerome
core   +3 more sources

Inflationary Solutions in Quantum Cosmology [PDF]

Classical and Quantum Gravity, 1995
We prove that in the Hartle-Hawking approach to quantum cosmology the existence of an inflationary phase is a general property of minisuperspace models given by a closed Friedmann-Robertson-Walker universe containing a massless scalar field with a ...
Esposito, Giampiero, Platania, Giovanni
core   +7 more sources