Open AccessThe Effect of Bulk Tachyon Field on the Dynamics of Geometrical Tachyon
Author(s) -
Eleftherios Papantonopoulos,
Ioanna Pappa,
Vassilios Zamarias
Publication year - 2007
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/68/1/012042
Subject(s) - tachyon , dynamics (music) , tachyon condensation , field (mathematics) , tachyonic field , physics , classical mechanics , theoretical physics , statistical physics , quantum electrodynamics , mathematical physics , mathematics , pure mathematics , string field theory , gauge boson , gauge theory , higgs mechanism , string theory , acoustics
We study the dynamics of the geometrical tachyon field on an unstable D3-brane in the background of a bulk tachyon field of a D3-brane solution of Type-0 string theory. We find that the geometrical tachyon potential is modified by a function of the bulk tachyon and inflation occurs at weak string coupling, where the bulk tachyon condenses, near the top of the geometrical tachyon potential. We also find a late accelerating phase when the bulk tachyon asymptotes to zero and the geometrical tachyon field reaches the minimum of the potential © 2007 IOP Publishing Ltd