Zobrazeno 1 - 10
of 561
pro vyhledávání: '"Feinberg D"'
Biasing a three-terminal Josephson junction (TTJ) with symmetrical voltages $0,V,-V$ leads to new kinds of DC currents, namely quartet Josephson currents and phase-dependent multiple Andreev reflection (MAR) currents. We study these currents in a sys
Externí odkaz:
http://arxiv.org/abs/2307.06839
Publikováno v:
Phys. Rev. B 97, 220505 (2018)
We propose a protocol to locally detect the Berry curvature of a three terminal Josephson junction with a quantum dot based on a synchronic detection when an AC modulation is applied in the device. This local gauge invariant quantity is expressed in
Externí odkaz:
http://arxiv.org/abs/1804.04755
Publikováno v:
Phys. Rev. B 97, 195423 (2018)
Irradiating a Josephson junction with microwaves can operate not only on the amplitude but also on the phase of the Josephson current. This requires breaking time inversion symmetry, which is achieved by introducing a phase lapse between the microwav
Externí odkaz:
http://arxiv.org/abs/1708.03262
Autor:
Padurariu, C., Jonckheere, T., Rech, J., Mélin, R., Feinberg, D., Martin, T., Nazarov, Yu. V.
Publikováno v:
Phys. Rev. B 92, 205409 (2015)
We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multi-terminal junction may cross the Fermi level. We reveal that for a quasi-continuous metallic density of sta
Externí odkaz:
http://arxiv.org/abs/1508.03289
Publikováno v:
Eur. Phys. J. B 88, 99 (2015)
The equilibrium current-phase structure of a tri-terminal superconducting Josephson junction (bijunction) is analyzed as a function of the two relevant phases. The bijunction is made of two noninteracting quantum dots, each one carrying a single leve
Externí odkaz:
http://arxiv.org/abs/1412.3944
Autor:
Mélin, R., Feinberg, D., Courtois, H., Padurariu, C., Pfeffer, A., Duvauchelle, J. E., Lefloch, F., Jonckheere, T., Rech, J., Martin, T., Douçot, B.
Bijunctions are three-terminal Josephson junctions where three superconductors are connected by a single weak link made of a metallic region or of quantum dots. Biasing two of the superconductors with commensurate voltages yields Andreev resonances t
Externí odkaz:
http://arxiv.org/abs/1409.2394
Publikováno v:
Phys. Rev. B 90, 075419 (2014)
We propose an all-superconducting three-terminal setup consisting in a carbon nanotube (or semiconducting nanowire) contacted to three superconducting leads. The resulting device, referred to as a "biSQUID", is made of four quantum dots arranged in t
Externí odkaz:
http://arxiv.org/abs/1404.4779
Publikováno v:
Phys. Rev. B 87, 214501 (2013)
An all-superconducting bijunction consists of a central superconductor contacted to two lateral superconductors, such that non-local crossed Andreev reflection is operating. Then new correlated transport channels for the Cooper pairs appear in additi
Externí odkaz:
http://arxiv.org/abs/1301.2344
Publikováno v:
Phys. Rev. B 86, 214519 (2012)
We study Josephson junctions (JJs) in which the region between the two superconductors is a multichannel system with Rashba spin-orbit coupling (SOC) where a barrier or a quantum point contact (QPC) is present. These systems might present unconventio
Externí odkaz:
http://arxiv.org/abs/1212.2786
Autor:
Baines, D. Y., Meunier, T., Mailly, D., Wieck, A. D., Bäuerle, C., Saminadayar, L., Cornaglia, Pablo S., Usaj, Gonzalo, Balseiro, C. A., Feinberg, D.
We report low-temperature transport measurements through a double quantum dot device in a configuration where one of the quantum dots is coupled directly to the source and drain electrodes, and a second (side-coupled) quantum dot interacts electrosta
Externí odkaz:
http://arxiv.org/abs/1202.1580