The following article is Open access

Spacetime in string theory

Published 29 September 2005 Published under licence by IOP Publishing Ltd
, ,     Focus on Spacetime 100 Years Later Citation Gary T Horowitz 2005 New J. Phys. 7 201DOI 10.1088/1367-2630/7/1/201

1367-2630/7/1/201

Abstract

We give a brief overview of the nature of spacetime emerging from string theory. This is radically different from the familiar spacetime of Einstein's relativity. At a perturbative level, the spacetime metric appears as ‘coupling constants’ in a two-dimensional quantum field theory. Nonperturbatively (with certain boundary conditions), spacetime is not fundamental but must be reconstructed from a holographic, dual theory.

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10.1088/1367-2630/7/1/201