Superconductivity-induced macroscopic resonant tunneling.
We show analytically and by numerical simulations that the conductance through pi-biased chaotic Josephson junctions is enhanced by several orders of magnitude in the short-wavelength regime. We identify the mechanism behind this effect as macroscopic resonant tunneling through a macroscopic number of low-energy quasidegenerate Andreev levels.
Goorden
M C
MC
Département de Physique Théorique, Université de Genève, CH-1211 Genève 4, Switzerland.
Jacquod
Ph
P
Weiss
J
J