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Regular version of the site

Article

Interplay between Josephson and Aharonov-Bohm effects in Andreev interferometers

Scientific Reports. 2019. Vol. 9. P. 1-9.
Dolgirev P., Kalenkov M., Zaikin Andrei D.

Proximity induced quantum coherence of electrons in multi-terminal voltage-driven hybrid normalsuperconducting
nanostructures may result in a non-trivial interplay between topology-dependent
Josephson and Aharonov-Bohm effects. We elucidate a trade-off between stimulation of the voltagedependent
Josephson current due to non-equilibrium effects and quantum dephasing of quasiparticles
causing reduction of both Josephson and Aharonov-Bohm currents. We also predict phase-shifted
quantum coherent oscillations of the induced electrostatic potential as a function of the externally
applied magnetic flux. Our results may be employed for engineering superconducting nanocircuits with
controlled quantum properties.