UNIVERSAL PARAMETRIC CORRELATIONS OF CONDUCTANCE PEAKS IN QUANTUM DOTS

We compute the parametric correlation function of the conductance peak s in chaotic and weakly disordered quantum jots in the Coulomb blockad e regime and demonstrate its universality upon an appropriate scaling of the parameter. For a symmetric dot we show that this correlation fu nction is affected by breaking time-reversal symmetry but is independe nt of the details of the channels in the external leads. We derive a n ew scaling which depends on the eigenfunctions alone and can be extrac ted directly from the conductance peak heights. Our results are in exc ellent agreement with model simulations of a disordered quantum dot.