Josephson current through a molecular transistor in a dissipative environment
Tomáš Novotný, Alessandra Rossini, Karsten Flensberg
DOI 10.1103/PhysRevB.72.224502 · Physical Review B
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Abstract
We study the Josephson coupling between two superconductors through a single correlated molecular level, including Coulomb interaction on the level and coupling to a bosonic environment. All calculations are done to the lowest, i.e., the fourth, order in the tunneling coupling and we find a suppression of the supercurrent due to the combined effect of the Coulomb interaction and the coupling to environmental degrees of freedom. Both analytic and numerical results are presented.
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