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The Cosmological Constant from the Viewpoint of String Theory

Witten, Edward (2001) The Cosmological Constant from the Viewpoint of String Theory. In: Sources and Detection of Dark Matter and Dark Energy in the Universe. Springer , Berlin, pp. 27-36. ISBN 978-3-642-07446-2.

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The mystery of the cosmological constant is probably the most pressing obstacle to significantly improving the models of elementary particle physics derived from string theory. The problem arises because in the standard framework of low energy physics, there appears to be no natural explanation for vanishing or extreme smallness of the vacuum energy, while on the other hand it is very difficult to modify this framework in a sensible way. In seeking to resolve this problem, one naturally wonders if the real world can somehow be interpreted in terms of a vacuum state with unbroken supersymmetry.

Item Type:Book Section
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URLURL TypeDescription Paper ReadCube access
Witten, Edward0000-0002-7752-6073
Additional Information:© 2001 Springer-Verlag Berlin Heidelberg. This work was supported in part by NSF Grant PHY-9513835 and the Caltech Discovery Fund.
Funding AgencyGrant Number
Caltech Discovery FundUNSPECIFIED
Subject Keywords:String Theory; Cosmological Constant; Supersymmetry Breaking; Stable Vacuum; Vacuum Energy Density
Record Number:CaltechAUTHORS:20200324-153441075
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102095
Deposited By: Tony Diaz
Deposited On:24 Mar 2020 22:44
Last Modified:16 Nov 2021 18:08

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