Ekpyrotic

The ekpyrotic universe, or ekpyrotic scenario, is a cosmological model about the origin and shape of the universe. The name comes from a Stoic term for "out of fire". The ekpyrotic model of the universe is an alternative to the standard cosmic inflation paradigm, both of which accept that the standard big bang Lambda-CDM model of our universe is an appropriate description up to very early times. The ekpyrotic model is a precursor to, and part of the cyclic model.

The ekpyrotic model received recent attention from cosmologists, and has been discussed in a number of articles that suggest it as an alternative to the Big Bang theory after it was submitted as a candidate for publication in Physical Review.

Notes and references

See also

• cosmic inflation
• cyclic model

External links

• Greene, Brian, The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory, Vintage (2000).
• Kallosh, Renata, Kofman, Lev and Linde, Andrei, Pyrotechnic Universe (the first paper to point out problems with the theory)
• A Brief Introduction to the Ekpyrotic Universe Steinhardt, Paul J., Department of Physics, Princeton University
• Whitehouse, David, " Before the Big Bang". BBC News. April 10, 2001.
• Discover Magazine, Before the Big Bang February 2004 issue.
• Simplified Overview Comparing Standard and Ekpyrotic Models of the Universe
• Parallel Universes, (BBC Two 9.00pm Thursday February 14, 2002)