Abstract

We derive and study a class of cosmological and wormhole solutions of low-energy effective string field theory. We consider a general four-dimensional string effective action where moduli of the compactified manifold and the electromagnetic field are present. The cosmological solutions of the two-dimensional effective theory obtained by dimensional reduction of the former are discussed. In particular we demonstrate that the two-dimensional theory possesses a scale-factor duality invariance. Eucidean four-dimensional instantons describing the nucleation of the baby universes are found and the probability amplitude for the nucleation process given.

Department(s)

Physics

Sponsor(s)

M. U. R. S. T.

Comments

This work was partially supported by M.U.R.S.T.

International Standard Serial Number (ISSN)

0556-2821

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1994 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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