Tachyon kinks on unstable D-branes in boundary string field theory

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Using the effective action from boundary string field theory, we study tachyon kinks with and without electromagnetic fields. For the case of a pure tachyon, an array of kink-antikink is obtained. In the presence of an electromagnetic field, all possible static codimension-one soliton solutions such as array of kink-antikink, single topological BPS kink, bounce, half kink, as well as non-BPS topological kink are found.

Original languageEnglish
Pages (from-to)S79-S84
JournalJournal of the Korean Physical Society
Issue numberSUPPL. 1
StatePublished - May 2007


  • Boundary string field theory
  • Tachyon kink
  • Unstable D-brane


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