Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Used in the names "ekpyrotic universe" or "ekpyrotic scenario", coined specifically to name this theory.
  • adj. Relating to the ekpyrotic scenario, e.g. ekpyrotic cosmology.

Etymologies

Coined in 2001 by Paul Steinhardt, from Ancient Greek εκπυρωσι&ς (ekpurōsis) "conflagration, ekpyrosis", referring in Stoic philosophy to the destruction and recreation of the world in fire. (Wiktionary)

Examples

  • Steinhardt is the author of the quintessence theory and a cosmological idea called ekpyrotic (if I remember the spelling).

    A Dark, Misleading Force

  • String theory offers mechanisms to get around the singularity problem of the big bang: Physicists Paul Steinhardt and Neil Turok have proposed an " ekpyrotic " model, where two universes floating in multidimensional space collide to produce a new beginning for the universe.

    How It

  • A related set of ideas have been advanced by Steinhardt, Turok, and collaborators, first as the ekpyrotic scenario and later as the cyclic universe scenario.

    How Did the Universe Start?

  • Both take advantage of branes and extra dimensions to try to follow cosmological evolution right through the purported Big Bang singularity; in the ekpyrotic case, there is a unique turnaround point, whereas in the cyclic case there are an infinite number of bounces stretching endlessly into the past and the future.

    How Did the Universe Start?

  • Any bounce or ekpyrotic model will not give us an answer to creation?

    Against Bounces

  • One might also count more specific cosmic scenarios like DBI inflation, pre-Big-Bang cosmology, the ekpyrotic universe, and brane gas cosmologies.

    Guest Blogger: Joe Polchinski on the String Debates

  • There remains room for alternatives like the ekpyrotic cyclic universe model of Steinhart and Turock (see _Analog_, April 2002 and January 2003), in which two extra-dimensional "branes" clap together to produce a later-stage Big Bang with no inflation or initial singularity.

    Analog Science Fiction and Fact

  • The real target for this assertion is the ekpyrotic universe theory, something with which Hawking disagrees.

    The Full Feed from HuffingtonPost.com

  • The ekpyrotic universe model, suggested by Paul Steinhardt and Neil Turok, tells a similar story.

    New Scientist - Online News

  • In ekpyrotic cosmology our Universe was formed by similar collision of many branes, but in substantially larger scope, then the LHC could provide.

    PhysOrg.com - latest science and technology news stories

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.