Rolling tachyons in string cosmology

Chanju Kim, Hang Bae Kim, Yoonbai Kim

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


We study the role of rolling tachyons in the cosmological model with dilatonic gravity. In the string frame, flat space solutions of both initial-stage and late-time are obtained in closed form. In the Einstein frame, we show that every expanding solution is decelerating.

Original languageEnglish
Pages (from-to)111-118
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
StatePublished - 23 Jan 2003


  • Dilaton
  • Rolling tachyon
  • String cosmology


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