Gravitational equations of motion at the string scale

Sunil Kalara, Costas Kounnas, Keith A. Olive

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We consider the magnitude of string corrections to Einstein's equations to first order in the inverse string tension α′ and their importance at the "limiting" temperature implied by the exponential mass spectrum. In particular we consider both four- and ten-dimensional superstring theories with and without the inclusion of dilaton effects and the role of compactification. Cosmological applications such as inflation are also discussed. We find that a period of inflation necessarily requires a non-trivial role for the dilaton field.

Original languageEnglish (US)
Pages (from-to)265-272
Number of pages8
JournalPhysics Letters B
Issue number2
StatePublished - Dec 15 1988

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