| 1. |
- Porokhov, N.V., et al.
(författare)
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The physical basis of the fabrication of the third generation of high-temperature superconducting wires on quartz substrates
- 2015
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Ingår i: Moscow University Physics Bulletin (English Translation of Vestnik Moskovskogo Universiteta, Fizika). - 0027-1349 .- 1934-8460. ; 70:2, s. 134-139
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Tidskriftsartikel (refereegranskat)abstract
- The problem of the fabrication of third-generation high-temperature superconductors (HTSCs) that are designed for the transmission of electric energy and the creation of nanoelectronic devices is studied in this work. The issues of the fabrication of dielectric substrates for the third generation wires are considered. The technology of HTSC film deposition on the quartz substrates is presented. Complex studies of sputtering of the buffer and superconducting YBa2Cu3O7 − δ (YBCO) layers were performed. The results of studies of electrophysical properties of the HTSC films on the quartz substrates are discussed.
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| 2. |
- Soloviev, I.I., et al.
(författare)
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Effect of Cherenkov radiation on the jitter of solitons in the driven underdamped Frenkel-Kontorova model
- 2013
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Ingår i: Physical Review E. - 2470-0045 .- 2470-0053. ; 87:6
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Tidskriftsartikel (refereegranskat)abstract
- The effect of complex dynamics of solitons on the output noise of the system (thermal jitter) is studied in the frame of the driven underdamped Frenkel-Kontorova model. In contrast to the continuous case, we have observed a dramatic splash of the jitter. It is demonstrated that this jitter increase is related to the joining of an initial soliton with the one generated by large amplitude oscillations of the Cherenkov radiation tail, which results in the establishment of a unified soliton structure.
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| 3. |
- Soloviev, I.I., et al.
(författare)
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Symmetrical Josephson vortex interferometer as an advanced ballistic single-shot detector
- 2014
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 105:20, s. Art- no. 202602
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Tidskriftsartikel (refereegranskat)abstract
- We consider a ballistic detector formed in an interferometer manner which operational principle relies on Josephson vortex scattering at a measurement potential. We propose an approach to symmetrize the detector scheme and explore arising advantages in the signal-to-noise ratio and in the back-action on a measured object by means of recently presented numerical and analytical methods for modeling of a soliton scattering dynamics in the presence of thermal fluctuations. The obtained characteristics for experimentally relevant parameters reveal practical applicability of the considered schemes including possibility of coupling with standard digital rapid single flux quantum circuits.
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| 4. |
- Soloviev, , II, et al.
(författare)
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Soliton scattering as a measurement tool for weak signals
- 2015
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Ingår i: Physical Review B - Condensed Matter and Materials Physics. - 2469-9950 .- 2469-9969. ; 92:1
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Tidskriftsartikel (refereegranskat)abstract
- We have considered relativistic soliton dynamics governed by the sine-Gordon equation and affected by short spatial inhomogeneities of the driving force and thermal noise. Developed analytical and numerical methods for calculation of soliton scattering at the inhomogeneities allowed us to examine the scattering as a measurement tool for sensitive detection of polarity of the inhomogeneities. We have considered the superconducting fluxonic ballistic detector as an example of the device in which the soliton scattering is utilized for quantum measurements of superconducting flux qubits. We optimized the soliton dynamics for the measurement process varying the starting and the stationary soliton velocity as well as configuration of the inhomogeneities. For experimentally relevant parameters we obtained the signal-to-noise ratio above 100 reflecting good practical usability of the measurement concept.
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