Inflationary Cosmology

Linde, Andrei

doi:10.1007/978-3-540-74353-8_1

Cited by 474 publications

(326 citation statements)

References 209 publications

(225 reference statements)

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“…Combining this with (2.3) we find that 5) where the last estimate is for N = 60. This value of n s is within the range of current observational limits that give (for small r) n s = 0.95 ± 0.02.…”

Section: Inflection Point Inflationsupporting

confidence: 54%

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Inflection point inflation and time dependent potentials in string theory

Itzhaki

Kovetz

2007

J. High Energy Phys.

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Section: Inflection Point Inflationsupporting

confidence: 54%

“…Namely, from a four dimensional perspective these are space-filling branes. Their action in the frame (3.1) is 5) where N p+3 is the number of (3+p)-branes and T 3+p is their tension. To find the potential in the Einstein frame we rescale (3.2).…”

Section: Ipi In String Theorymentioning

confidence: 99%

Inflection point inflation and time dependent potentials in string theory

Itzhaki

Kovetz

2007

J. High Energy Phys.

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“…A prominent class of inflationary scenarios -hybrid inflation -involve multiple scalar fields [13]. In this work, we consider a model with a bosonic complex field operator ϕ a with two components a = 1, 2.…”

Section: Two-component Bose Gasmentioning

confidence: 99%

Inflationary preheating dynamics with two-species condensates

2017

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We discuss the amplification of loop corrections in quantum many-body systems through dynamical instabilities. As an example, we investigate both analytically and numerically a two-component ultracold atom system in one spatial dimension. The model features a tachyonic instability, which incorporates characteristic aspects of the mechanisms for particle production in early-universe inflaton models. We establish a direct correspondence between measureable macroscopic growth rates for occupation numbers of the ultracold Bose gas and the underlying microscopic processes in terms of Feynman loop diagrams. We analyze several existing ultracold atom setups featuring dynamical instabilities and propose optimized protocols for their experimental realization. We demonstrate that relevant dynamical processes can be enhanced using a seeding procedure for unstable modes and clarify the role of initial quantum fluctuations and the generation of a non-linear secondary stage for the amplification of modes.

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“…We should nevertheless be open to the possibility that ΛCDM is just a first-order approximation of some more fundamental theory. Many theories of high-energy physics, like string theory and supergravity, predict light gravitationally coupled scalar fields (see, e.g., Binetruy 2006; Linde 2008, and references therein). These scalars may play the role of dark energy (quintessence).…”

Section: Introductionmentioning

confidence: 99%

Structure Formation in the Symmetron Model

Davis

Mota

et al. 2012

ApJ

108

142

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Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACT Scalar fields, strongly coupled to matter, can be present in nature and still be invisible to local experiments if they are subject to a screening mechanism. The symmetron is one such mechanism that relies on restoration of a spontaneously broken symmetry in regions of high density to shield the scalar fifth force. We have investigated structure formation in the symmetron model by using N-body simulations and find observable signatures in both the linear and nonlinear matter power spectrum and on the halo mass function. The mechanism for suppressing the scalar fifth force in high-density regions is also found to work very well.

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Inflationary Cosmology

Abstract: I give a general review of the history of inflationary cosmology and of its present status.Comment: 60 pages, 10 figs, based on a talk given at the 22nd IAP Colloquium, "Inflation+25", Paris, June 200

Cited by 474 publications

References 209 publications

Inflection point inflation and time dependent potentials in string theory

Inflection point inflation and time dependent potentials in string theory

Inflationary preheating dynamics with two-species condensates

Structure Formation in the Symmetron Model

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