Superconductivity-induced macroscopic resonant tunneling

Details Superconductivity-induced macroscopic resonant tunneling Superconductivity-induced macroscopic resonant tunneling

2007-10-23

arxiv.org/abs/0710.4313v1

Phys. Rev. Lett. 100, 067001 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.100.067001

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 {\it macroscopic resonant tunneling} through a macroscopic
number of low-energy quasi-degenerate Andreev levels.

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