Cosmological Constant Behavior in DBI Theory
  Cosmological constant behavior can be realized as solutions of the
Dirac-Born-Infeld (DBI) action within Type IIB string theory and the AdS/CFT
correspondence. We derive a family of attractor solutions to the cosmological
constant that arise purely from the "relativistic" nature of the DBI action
without an explicit false vacuum energy. We also find attractor solutions with
values of the equation of state near but with $w\ne-1$; the forms for the
potential arising from flux interactions are renormalizable and natural, and
the D3-brane tension can be given by the standard throat form. We discuss
present and future observational constraints on the theory.
