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Theory of cosmological perturbations

- V. Mukhanov, H. Feldman, R. Brandenberger
- Physics
- 1 June 1992

We present in a manifestly gauge-invariant form the theory of classical linear gravitational perturbations in part I, and a quantum theory of cosmological perturbations in part II. Part I includes… Expand

Superstrings in the Early Universe

- R. Brandenberger, C. Vafa
- Physics
- 10 April 1989

We investigate some aspects of thermodynamics and cosmology for superstrings. By a rather delicate computation using the microcanonical ensemble we show that the thermodynamic description of strings… Expand

Formation of structure in the universe

- R. Brandenberger
- Physics
- 31 August 1995

An introduction to modern theories for the origin of structure in the Universe is given. After a brief review of the growth of cosmological perturbations in an expanding Universe and a summary of… Expand

Towards a nonsingular bouncing cosmology

- Yi-Fu Cai, D. Easson, R. Brandenberger
- Physics
- 11 June 2012

We present a nonsingular bouncing cosmology using single scalar field matter with non-trivial potential and non-standard kinetic term. The potential sources a dynamical attractor solution with… Expand

Generation of a scale-invariant spectrum of adiabatic fluctuations in cosmological models with a contracting phase

- F. Finelli, R. Brandenberger
- Physics
- 28 December 2001

In pre-big-bang and in ekpyrotic cosmology, perturbations on cosmological scales today are generated from quantum vacuum fluctuations during a phase when the Universe is contracting (viewed in the… Expand

Decay of correlations in surface models

- R. Brandenberger, C. E. Wayne
- Mathematics
- 1 March 1982

A convergent low-temperature expansion for a variety of models of twodimensional surfaces is presented. It yields existence of the thermodynamic limit for the pressure and correlation functions as… Expand

Trans-Planckian problem of inflationary cosmology

- Jérôme Martin, R. Brandenberger
- Physics
- 23 May 2000

In most current models of inflation based on a weakly self-coupled scalar matter field minimally coupled to gravity, the period of inflation lasts so long that, at the beginning of the inflationary… Expand

Loitering phase in brane gas cosmology

- R. Brandenberger, D. Easson, Dagny Kimberly
- Physics
- 20 September 2001

Abstract Brane gas cosmology (BGC) is an approach to M-theory cosmology in which the initial state of the Universe is taken to be small, dense and hot, with all fundamental degrees of freedom near… Expand

Producing a scale-invariant spectrum of perturbations in a Hagedorn phase of string cosmology.

- A. Nayeri, R. Brandenberger, C. Vafa
- Physics, Medicine
- Physical review letters
- 14 November 2005

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Trans-Planckian censorship and inflationary cosmology

- Alek Bedroya, R. Brandenberger, M. Loverde, C. Vafa
- Physics
- 24 September 2019

We study the implications of the recently proposed Trans-Planckian Censorship Conjecture (TCC) for early universe cosmology and in particular inflationary cosmology. The TCC leads to the conclusion… Expand

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