  We propose tunnel junctions of a Hall bar and a superconducting lead, for
observing Cooper-pair tunneling into singlet fractional quantum Hall edge
states. These tunnel junctions provide a natural means of extracting precise
information of the spin polarization and the filling factor of the state. The
low energy regime of one of the set-ups is governed by a novel quantum
entangled fixed point.

Mesoscale and Nanoscale Physics