BV analysis of tachyon fluctuation around multi-brane solutions in cubic string field theory

• Hata, Hiroyuki

Abstract

Abstract: We study whether the tachyon mode exists as a physical fluctuation on the 2-brane solution and on the tachyon vacuum solution in cubic open string field theory. Our analysis is based on the Batalin-Vilkovisky formalism. We first construct a set of six string states which corresponds to the set of fields and anti-fields containing the tachyon field. Whether the tachyon field can exist as a physical fluctuation is determined by the 6 × 6 matrix defining the anti-bracket in the present sector. If the matrix is degenerate/non-degenerate, the tachyon field is physical/unphysical. Calculations for the pure-gauge type solutions in the framework of the KBc algebra and using the Kε-regularization lead to the expected results. Namely, the matrix for the anti-bracket is degenerate/non-degenerate in the case of the 2-brane/tachyon-vacuum solution. Our analysis is not complete, in particular, in that we have not identified the four-fold degeneracy of tachyon fluctuation on the 2-brane solution, and moreover that the present six states do not satisfy the hermiticity condition.

Journal

• Journal of High Energy Physics

  Journal of High Energy Physics 2016 022-, 2016-05

  Springer Verlag

Keywords

• BRST Quantization
• D-branes
• String Field Theory
• Tachyon Condensation

Details

• CRID: 1050001335835672832
• NII Article ID: 120005819485
• ISSN: 10298479
• DOI: 10.1007/jhep05(2016)022
• HANDLE: 2433/216031
• Web Site: http://link.springer.com/content/pdf/10.1007/JHEP05(2016)022
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN