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Why do we live in 3+1 dimensions?

journal contribution
posted on 2023-06-08, 05:38 authored by R Durrer, M Kunz, M Sakellariadou
In the context of string theory we argue that higher-dimensional Dp-branes unwind and evaporate so that we are left with D3-branes embedded in a (9+1)-dimensional bulk. One of these D3-branes plays the rle of our Universe. Within this picture, the evaporation of the higher-dimensional Dp-branes provides the entropy of our Universe.

History

Publication status

  • Published

Journal

Physics Letters B

ISSN

0370-2693

Publisher

Elsevier

External DOI

Issue

3-4

Volume

614

Page range

125-130

Department affiliated with

  • Physics and Astronomy Publications

Notes

Describes how in string theory branes are thought to annihilate with each other, until only 3-dimensional branes are left, to explain why we live in three spatial dimensions. Featured on Physicswatch (CERN) and in the February 5 2005 issue of the New Scientist. (29 HEP/SPIRES citations)

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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