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Unitary constraints for string propagation in the presence of background fields
- Source :
- Physics Letters B. 183:65-70
- Publication Year :
- 1987
- Publisher :
- Elsevier BV, 1987.
-
Abstract
- We discuss the constraints imposed by the unitary of the S -matrix on the theory of a closed basonic string propagating in a background consisting of a condensate of the string modes. The equations of motion for some of the low mass modes are thus obtained to all orders in α′ but to second order in a weak field expansion about a flat background.
Details
- ISSN :
- 03702693
- Volume :
- 183
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........5b9c1c77fcb5f7a89d49c55c8c0ea84b