Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Bratus, E."'
Publikováno v:
Phys. Rev. B 95, 014522 (2017)
We study theoretically the current-voltage characteristics (IVCs) of the Josephson field effect transistor - a ballistic SNINS junction with superconducting (S) electrodes confining a planar normal metal region (N), which is controlled by the gate in
Externí odkaz:
http://arxiv.org/abs/1611.04390
The specific property of a planar tunnel junction with thin-film diffusive plates and long enough leads is an essential enhancement of its transmission coefficient compared to the bare transparency of the tunnel barrier [1,2]. In voltage-biased junct
Externí odkaz:
http://arxiv.org/abs/1611.01401
Publikováno v:
Quantum Noise in Mesoscopic Physics, ed. by Yu.V.Nazarov, p.93-118, Kluwer Academic Publishers, 2003
We present a theory for the current shot noise in long diffusive SNS structures with low-resistive interfaces at arbitrary temperatures. In such structures, the noise is mostly generated by normal electron scattering in the N-region. Whereas the $I$-
Externí odkaz:
http://arxiv.org/abs/1412.0989
Publikováno v:
Physica C v.499, 15-23 (2014)
We develop a theory for the current-voltage characteristics of diffusive superconductor-normal metal-superconductor Josephson junctions with resistive interfaces and the distance between the electrodes smaller than the superconducting coherence lengt
Externí odkaz:
http://arxiv.org/abs/1401.0314
Publikováno v:
Phys. Rev. B 83,184517 (2011)
We solve the coherent multiple Andreev reflection (MAR) problem and calculate current-voltage characteristics (IVCs) for Josephson SINIS junctions, where S are local-equilibrium superconducting reservoirs, I denotes tunnel barriers, and N is a short
Externí odkaz:
http://arxiv.org/abs/1103.4640
Publikováno v:
Supercond. Sci. Technol. v.20, 529 (2007)
We formulate a theoretical framework to describe multiparticle current transport in planar superconducting tunnel junctions with diffusive electrodes. The approach is based on direct solving of quasiclassical Keldysh-Green function equations for none
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701174
Publikováno v:
Physical Review B v.73, 220506 (2006)
We calculate the subgap current in planar superconducting tunnel junctions with thin-film diffusive leads. It is found that the subharmonic gap structure of the tunnel current scales with an effective tunneling transparency which may exceed the junct
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602521
We present detailed theory for Andreev level qubit, the system consisting of a highly transmissive quantum point contact embedded in a superconducting loop. The two-level Hamiltonian for Andreev levels interacting with quantum phase fluctuations is d
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404656
We calculate analytically the current statistics for a short diffusive wire between the normal reservoir and a short superconductor-normal metal-superconductor (SNS) junction, at arbitrary applied voltages and temperatures. The cumulant-generating fu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311176
Publikováno v:
Phys. Rev. Lett. 90, 087003 (2003)
We investigate the dynamics of a two-level Andreev bound state system in a transmissive quantum point contact embedded in an rf-SQUID. Coherent coupling of the Andreev levels to the circulating supercurrent allows manipulation and read out of the lev
Externí odkaz:
http://arxiv.org/abs/cond-mat/0206342