  We present a semiclassical theory of current correlations in multiterminal
chaotic dot-superconductor junctions, valid in the absence of the proximity
effect in the dot. For a dominating coupling of the dot to the normal terminals
and a nonperfect dot-superconductor interface, positive cross correlations are
found between currents in the normal terminals. This demonstrates that positive
cross correlations can be described within a semiclassical approach. We show
that the semiclassical approach is equivalent to a quantum mechanical Green's
function approach with suppressed proximity effect in the dot.

Mesoscale and Nanoscale Physics;Superconductivity