LEVEL STATISTICS OF QUANTUM DOTS COUPLED TO RESERVOIRS

We study the effect of electron tunneling on the level statistics of q uantum dots. While the coupling between individual levels and the elec tron reservoir leads predominantly to the expected level broadening, t he indirect coupling of adjacent levels via the reservoir results in n ew asymptotic level statistics and broadening. These features, which a re attributed to renormalized spectral weights rather than to renormal ized eigenvalues of the Hamiltonian, are observable in the asymptotic frequency dependence in an absorption experiment. [S0031-9007(98)07630 -3].