2 papers
cond-mat.supr-con2025
Fluxon cotunneling in coupled Josephson junctions: Perturbation theory
Andrew G. Semenov, Alex Latyshev, Andrei D. Zaikin
We investigate the effects of fluxon cotunneling and quantum Coulomb drag in a system of two small Josephson junctions coupled by means of mutual capacitance . Depending on th…
cond-mat.supr-con2024
Quantum Coulomb drag mediated by cotunneling of fluxons and Cooper pairs
Andrew G. Semenov, Alex Latyshev, Andrei D. Zaikin
We predict two novel quantum drag effects which can occur in macroscopically quantum coherent Josephson circuits. We demonstrate that biasing one resistively shunted Josephson junc…