D/antiD Dark Energy in String Warped Compactification
Abstract
We study the evolution of relic D3-branes after the D3/-brane inflation in string warped compactification. The motion of D3-branes can be frozen under certain condition during the radiation/matter domination. These D3-branes can not be released until the D3/-branes potential energy becomes dominated at late time. Subsequently they will move towards to -branes, which play the role of uplifting AdS minimum to dS minimum, near the apex of throats. The annihilation of D3/-branes leads to the disappearance of dS vacua. This process may be regarded as a rapid decay channel of present dS vacua. We discuss the parameter spaces required by this process and calculate the decay time.
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