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Padurariu, C. (author), Jonkcheere, T. (author), Melin, R. (author), Feinberg, D. (author), Martin, T. (author), Nazarov, Y.V. (author)We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multiterminal junction may cross the Fermi level. We reveal that for a quasicontinuous metallic density of states, crossings at the Fermi level manifest as a closing of the proximity-induced gap. We calculate...journal article 2015
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Padurariu, C. (author), Keijzers, C.J.H. (author), Nazarov, Y.V. (author)We study theoretically dynamics in a Josephson junction coupled to a mechanical resonator looking at the signatures of the resonance in dc electrical response of the junction. Such a system can be realized experimentally as a suspended ultraclean carbon nanotube brought in contact with two superconducting leads. A nearby gate electrode can be...journal article 2012
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Padurariu, C. (author), Hassler, F. (author), Nazarov, Y.V. (author)Motivated by recent experiments, we study theoretically the full counting statistics of radiation emitted below the threshold of parametric resonance in a Josephson-junction circuit. In contrast to most optical systems, a significant part of emitted radiation can be collected and converted to an output signal. This permits studying the...journal article 2012
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Padurariu, C. (author), Nazarov, Y.V. (author)We propose and theoretically investigate superconducting spin qubits. Superconducting spin qubit consists of a single spin confined in a Josephson junction. We show that owing to spin-orbit interaction, superconducting phase difference across the junction can polarize this spin. We demonstrate that this enables single-qubit operations and more...journal article 2010