Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Shumeiko, A. S."'
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
Autor:
Shumeiko, V. S.
Publikováno v:
Phys. Rev. A 93, 023838 (2016)
We propose theory for reversible quantum transducer connecting superconducting qubits and optical photons using acoustic waves in piezoelectrics. The proposed device consists of integrated acousto-optic resonator that utilizes stimulated Brillouin sc
Externí odkaz:
http://arxiv.org/abs/1511.03819
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 85, 180506(R) (2012)
We consider a superconducting quantum point contact in a circuit quantum electrodynamics setup. We study three different configurations, attainable with current technology, where a quantum point contact is coupled galvanically to a coplanar waveguide
Externí odkaz:
http://arxiv.org/abs/1202.5507
Autor:
Staudt, Matthias U., Hoi, Io-Chun, Krantz, Philip, Sandberg, Martin, Simoen, Michael, Bushev, Pavel, Sangouard, Nicolas, Afzelius, Mikael, Shumeiko, Vitaly S., Johansson, Göran, Delsing, Per, Wilson, C. M.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 45 (2012) 124019
A quantum coherent interface between optical and microwave photons can be used as a basic building block within a future quantum information network. The interface is envisioned as an ensemble of rare-earth ions coupled to a superconducting resonator
Externí odkaz:
http://arxiv.org/abs/1201.1718
Publikováno v:
EPL, 96, 40003 (2011)
Bloch-Redfield equation is a common tool for studying evolution of qubit systems weakly coupled to environment. We investigate the accuracy of the Born approximation underlying this equation. We find that the high order terms in the perturbative expa
Externí odkaz:
http://arxiv.org/abs/1110.3275
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
Autor:
Greibe, Tine, Stenberg, Markku P. V., Wilson, C. M., Bauch, Thilo, Shumeiko, Vitaly S., Delsing, Per
Publikováno v:
Phys. Rev. Lett. 106, 097001 (2011)
In highly resistive superconducting tunnel junctions, excess subgap current is usually observed and is often attributed to microscopic "pinholes" in the tunnel barrier. We have studied the subgap current in superconductor-insulator-superconductor (SI
Externí odkaz:
http://arxiv.org/abs/1009.1248
Autor:
Michelsen, Jens, Shumeiko, Vitaly S.
Publikováno v:
Low Temp. Phys. 36, 925 (2010)
Conventional models of Josephson junction dynamics rely on the absence of low energy quasiparticle states due to a large superconducting gap. With this assumption the quasiparticle degrees of freedom become "frozen out" and the phase difference becom
Externí odkaz:
http://arxiv.org/abs/1009.0073