**Ekpyrotic and Cyclic Cosmology**

by Jean-Luc Lehners

**Publisher**: arXiv 2009**Number of pages**: 79

**Description**:

Ekpyrotic and cyclic cosmologies provide theories of the very early and of the very late universe. In these models, the big bang is described as a collision of branes - and thus the big bang is not the beginning of time. Before the big bang, there is an ekpyrotic phase with equation of state w=P/rho >> 1 during which the universe slowly contracts.

Download or read it online for free here:

**Download link**

(940KB, PDF)

## Similar books

**Introduction to Cosmology**

by

**David H Lyth**-

**arXiv**

These notes form an introduction to cosmology with special emphasis on large scale structure, the cmb anisotropy and inflation. In some places a basic familiarity with particle physics is assumed, but otherwise no special knowledge is needed.

(

**13477**views)

**Dynamics of the Universe in Problems**

by

**Yu. L. Bolotin, et al.**-

**UniverseInProblems.com**

Problem book on cosmology that includes its spectacular recent achievements. There are over 1000 problems, covering topics from the dynamics of the expanding Universe and CMB to cosmology beyond the Lambda-CDM model and holography.

(

**9748**views)

**Inflation and String Theory**

by

**Daniel Baumann, Liam McAllister**-

**arXiv**

We review cosmological inflation and its realization in quantum field theory and string theory. We describe two intertwined approaches to the physics of inflation: from the bottom up in effective field theory, and from the top down in string theory.

(

**10307**views)

**An Introduction into the Theory of Cosmological Structure Formation**

by

**Christian Knobel**-

**arXiv**

This text aims to give a pedagogical introduction into the main concepts of the theory of structure formation in the universe. The text is suited for graduate students of astronomy with a moderate background in general relativity.

(

**8916**views)