String propagation in a tachyon background

Sumit R. Das, B. Sathiapalan

Research output: Contribution to journalArticlepeer-review

85 Scopus citations


The equation of motion of the tachyon field is obtained by requiring conformal invariance of the closed bosonic string propagator in a tachyon background. The cubic tachyon coupling is also obtained in this way. These equations are generalizations of the Kosterlitz-Thouless flow equations and involve nonperturbative contributions to the functions.

Original languageEnglish
Pages (from-to)2664-2667
Number of pages4
JournalPhysical Review Letters
Issue number25
StatePublished - 1986

ASJC Scopus subject areas

  • General Physics and Astronomy


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