COSMOLOGY FROM CUBIC SUPERSTRING FIELD THEORY MODEL

摘要

It is shown that the late time rolling of the Cubic Superstring Field Theory (CSSFT) non-localtachyon in the FRW Universe leads to a cosmic acceleration with a periodic crossing of the w = —1barrier. Explicit solutions for the tachyon and Hubble parameter in the asymptotic regime aregiven. Cosmological consequences are discussed.