5 Citations (Scopus)

Abstract

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
Pages109-121
Number of pages13
DOIs
StatePublished - Aug 23 2010
EventInvisible Universe International Conference - Paris, France
Duration: Jun 29 2009Jul 3 2009

Publication series

NameAIP Conference Proceedings
Volume1241
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInvisible Universe International Conference
CountryFrance
CityParis
Period6/29/097/3/09

Fingerprint

physics
cosmology
horizon
relativity
geometry
predictions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ashtekar, A. (2010). The big bang and the quantum. In Invisible Universe International Conference (pp. 109-121). (AIP Conference Proceedings; Vol. 1241). https://doi.org/10.1063/1.3462605
Ashtekar, Abhay. / The big bang and the quantum. Invisible Universe International Conference. 2010. pp. 109-121 (AIP Conference Proceedings).
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Ashtekar, A 2010, The big bang and the quantum. in Invisible Universe International Conference. AIP Conference Proceedings, vol. 1241, pp. 109-121, Invisible Universe International Conference, Paris, France, 6/29/09. https://doi.org/10.1063/1.3462605

The big bang and the quantum. / Ashtekar, Abhay.

Invisible Universe International Conference. 2010. p. 109-121 (AIP Conference Proceedings; Vol. 1241).

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

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Ashtekar A. The big bang and the quantum. In Invisible Universe International Conference. 2010. p. 109-121. (AIP Conference Proceedings). https://doi.org/10.1063/1.3462605