String theory and cosmological singularities

Sumit R. Das

doi:10.1007/s12043-007-0112-7

String theory and cosmological singularities

Sumit R. Das

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In general relativity space-like or null singularities are common: they imply that 'time' can have a beginning or end. Well-known examples are singularities inside black holes and initial or final singularities in expanding or contracting universes. In recent times, string theory is providing new perspectives of such singularities which may lead to an understanding of these in the standard framework of time evolution in quantum mechanics. In this article, we describe some of these approaches.

Original language	English
Pages (from-to)	93-108
Number of pages	16
Journal	Pramana - Journal of Physics
Volume	69
Issue number	1
DOIs	https://doi.org/10.1007/s12043-007-0112-7
State	Published - Jul 2007

Bibliographical note

Funding Information:
I would like to express my deep gratitude to AKR for giving me the first glimpse into the beauty of theoretical physics. He has been instrumental in shaping my taste in the subject. I thank the editors of this special issue for inviting me to contribute an article to honor him. I also thank my collaborators Joanna Karczmarek, Samir Mathur, Jeremy Michelson, K Narayan and Sandip Trivedi for enjoyable collaborations and my colleagues at Tata Institute of Fundamental Research and at University of Kentucky for numerous discussions. This work was supported in part by a National Science Foundation (USA) Grant PHY-0244811 and a Department of Energy (USA) contract DE-FG01-00ER45832.

Keywords

Cosmological singularities
String theory

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1007/s12043-007-0112-7

Cite this

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title = "String theory and cosmological singularities",

abstract = "In general relativity space-like or null singularities are common: they imply that 'time' can have a beginning or end. Well-known examples are singularities inside black holes and initial or final singularities in expanding or contracting universes. In recent times, string theory is providing new perspectives of such singularities which may lead to an understanding of these in the standard framework of time evolution in quantum mechanics. In this article, we describe some of these approaches.",

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N2 - In general relativity space-like or null singularities are common: they imply that 'time' can have a beginning or end. Well-known examples are singularities inside black holes and initial or final singularities in expanding or contracting universes. In recent times, string theory is providing new perspectives of such singularities which may lead to an understanding of these in the standard framework of time evolution in quantum mechanics. In this article, we describe some of these approaches.

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String theory and cosmological singularities

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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