Cooper pair tunneling in junctions of singlet quantum Hall states and superconductors

Details Cooper pair tunneling in junctions of singlet quantum Hall states and superconductors Cooper pair tunneling in junctions of singlet quantum Hall states and superconductors

2004-05-07

arxiv.org/abs/cond-mat/0405156v3

Phys. Rev. Lett. 93, 266803 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure (3 subfigures); new title and abstract; new discussion of the quantum entangled fixed point; final manuscrip

Scientific paper

10.1103/PhysRevLett.93.266803

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.

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