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We study analytically the dynamical formation of lower dimensional branes atthe endpoint of brane-antibrane inflation through the condensation oftopological defects of the tachyon field which describes the instability of theinitial state. We then use this information to quantify the efficiency of thereheating which is due to the coupling of time dependent tachyon background tomassless gauge fields which will be localized on the final state branes. Weimprove upon previous estimates indicating that this can be an efficientreheating mechanism for observers on the brane.Comment: 9 pages. Talk given at the 26th annual  Montreal-Rochester-Syracuse-Toronto Conference on High-Energy Physics: MRST  200

TACHYON DEFECT FORMATION AND REHEATING IN BRANE-ANTIBRANE INFLATION