Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Nazarov, Yu."'
Autor:
Vischi, F., Carrega, M., Strambini, E., D'Ambrosio, S., Bergeret, F. S., Nazarov, Yu. V., Giazotto, F.
Publikováno v:
Phys. Rev. B 95, 054504 (2017)
We present an exhaustive theoretical analysis of a double-loop Josephson proximity interferometer, as the one recently realized by Strambini et al. for the control of the Andreev spectrum via an external magnetic field. This system, called $\omega$-S
Externí odkaz:
http://arxiv.org/abs/1611.09285
Publikováno v:
Nature Nanotechnology 11, 1055 (2016)
Multi-terminal superconducting Josephson junctions based on the proximity effect offer the bright opportunity to tailor non trivial quantum states in nanoscale weak-links. These structures can realize exotic topologies in multidimensions as, for exam
Externí odkaz:
http://arxiv.org/abs/1603.00338
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:
Phys. Rev. B 90, 014521 (2014)
The superconducting proximity effect leads to strong modifications of the local density of states in diffusive or chaotic cavity Josephson junctions, which displays a phase-dependent energy gap around the Fermi energy. The so-called minigap of the or
Externí odkaz:
http://arxiv.org/abs/1406.6797
Publikováno v:
Phys. Rev. Lett. 112, 067001 (2014)
The density of Andreev levels in a normal metal ($N$) in contact with two superconductors ($S$) is known to exhibit an induced minigap related to the inverse dwell time. We predict a small secondary gap just below the superconducting gap edge---a fea
Externí odkaz:
http://arxiv.org/abs/1308.2529
Autor:
Godschalk, F., Nazarov, Yu. V.
Publikováno v:
Europhysics Letters 103, 28005 (2013)
A recently proposed device, dubbed half-Josephson laser, provides a phase-lock between the optical phase and the superconducting phase difference between the leads of the device. In this paper we propose to utilize this phase-lock for stabilization o
Externí odkaz:
http://arxiv.org/abs/1306.4226
Publikováno v:
Phys. Rev. B 86, 155448 (2012)
We study theoretically dynamics in a Josephson junction coupled to a mechanical resonator looking at the signatures of the resonance in d.c. electrical response of the junction. Such a system can be realized experimentally as a suspended ultra-clean
Externí odkaz:
http://arxiv.org/abs/1112.5807
Autor:
Snyman, I., Nazarov, Yu. V.
Publikováno v:
Phys. Rev. Lett. 108, 076805 (2012)
We prove theoretically the possibility of electric-field controlled polaron formation involving flexural (bending) modes in suspended carbon nanotubes. Upon increasing the field, the ground state of the system with a single extra electron undergoes a
Externí odkaz:
http://arxiv.org/abs/1104.2811
Autor:
Hriscu, A. M., Nazarov, Yu. V.
Publikováno v:
Physical Review B 83, 174511 (2011)
In order to illustrate the emergence of Coulomb blockade from coherent quantum phase-slip processes in thin superconducting wires, we propose and theoretically investigate two elementary setups, or "devices". The setups are derived from Cooper-pair b
Externí odkaz:
http://arxiv.org/abs/1101.0231
Autor:
Danon, J., Nazarov, Yu. V.
Publikováno v:
Phys. Rev. B 83, 245306 (2011)
In this work we present a new formalism to evaluate the nuclear spin dynamics driven by hyperfine interaction with non-equilibrium electron spins. To describe the dynamics up to second order in the hyperfine coupling, it suffices to evaluate the susc
Externí odkaz:
http://arxiv.org/abs/1011.3378