The big bang and the quantum

Abhay Ashtekar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


General relativity predicts that space-time comes to an end and physics comes to a halt at the big-bang. Recent developments in loop quantum cosmology have shown that these predictions cannot be trusted. Quantum geometry effects can resolve singularities, thereby opening new vistas. Examples are: The big bang is replaced by a quantum bounce; the 'horizon problem' disappears; immediately after the big bounce, there is a super-inflationary phase with its own phenomenological ramifications; and, in presence of a standard inflation potential, initial conditions are naturally set for a long, slow roll inflation independently of what happens in the pre-big bang branch. As in my talk at the conference, I will first discuss the foundational issues and then the implications of the new Planck scale physics near the Big Bang.

Original languageEnglish (US)
Title of host publicationInvisible Universe International Conference
Number of pages13
StatePublished - 2010
EventInvisible Universe International Conference - Paris, France
Duration: Jun 29 2009Jul 3 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherInvisible Universe International Conference

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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