Decay rates of fixed planes and closed-string tachyons on unstable orbifolds

摘要

We consider closed-string tachyon condensation in the twisted sectors on the C/Z(2n+l) X R-7,R-1 orbifold. We calculate the localized energy density in the fixed plane on the orbifold to the one-loop level, and we obtain the decay rate per unit volume of the fixed plane to leading order. We show that the decay rate increases monotonically as a function of n.