Tachyon kinks in boundary string field theory

Chanju Kim, Yoonbai Kim, O. Kab Kwon, Ho Ung Yee

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations


We study tachyon kinks with and without electromagnetic fields in the context of boundary string field theory. For the case of pure tachyon only an array of kink-antikink is obtained. In the presence of electromagnetic coupling, all possible static codimension-one soliton solutions such as array of kink-antikink, single topological BPS kink, bounce, half kink, as well as nonBPS topological kink are found, and their properties including the interpretation as branes are analyzed in detail. Spectrum of the obtained kinks coincides with that of Dirac-Born-Infeld type effective theory.

Original languageEnglish
Pages (from-to)5075-5099
Number of pages25
JournalJournal of High Energy Physics
Issue number3
StatePublished - 1 Mar 2006


  • String Field Theory
  • Tachyon Condensation


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