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.
Recommended Citation
M. Cadoni and M. Cavaglia, "Cosmological and Wormhole Solutions in Low-Energy Effective String Theory," Physical Review D, vol. 50, no. 10, pp. 6435 - 6443, American Physical Society (APS), Nov 1994.
The definitive version is available at https://doi.org/10.1103/PhysRevD.50.6435
Department(s)
Physics
Sponsor(s)
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.
Publication Date
01 Nov 1994
Comments
This work was partially supported by M.U.R.S.T.