Zobrazeno 1 - 10
of 2 769
pro vyhledávání: '"Shevchenko, S."'
Publikováno v:
Rev. Sci. Instrum. 95, 035116 (2024)
To measure low-temperature thermal fields, we have developed a single-element cooled thermal imaging camera for a spectral range of 8{\div}14 {\mu}m with an internal shutter for radiometric calibration. To improve the accuracy of measuring the temper
Externí odkaz:
http://arxiv.org/abs/2408.16165
Publikováno v:
Physical Review B 110, 155414 (2024)
A theory of detection of microwave photons with a flux qubit-based detector is presented. We consider semiclassical approximation with the electromagnetic field being in a coherent state. Flux qubit is considered as a multilevel quantum system (qudit
Externí odkaz:
http://arxiv.org/abs/2402.07801
Publikováno v:
Phys. Rev. Research 6, 033340 (2024)
A conventional realization of quantum logic gates and control is based on resonant Rabi oscillations of the occupation probability of the system. This approach has certain limitations and complications, like counter-rotating terms. We study an altern
Externí odkaz:
http://arxiv.org/abs/2310.17932
Publikováno v:
Eur. Phys. J. Spec. Top. 232, 3227-3235 (2023)
We theoretically describe a driven two-electron four-level double-quantum dot (DQD) tunnel coupled to a fermionic sea by using the rate-equation formalism. This approach allows to find occupation probabilities of each DQD energy level in a relatively
Externí odkaz:
http://arxiv.org/abs/2304.04186
Autor:
Konstantinov, A. M., Shevchenko, S. I.
It is shown that, in the presence of a magnetic field, a quantized vortex line in a superfluid liquid acquires a linear polarization charge, which is localized near the vortex axis over a length on the order of the coherence length. It is found that
Externí odkaz:
http://arxiv.org/abs/2303.03780
Autor:
Liul, M. P., Chien, C. -H., Chen, C. -Y., Wen, P. Y., Chen, J. C., Lin, Y. -H., Shevchenko, S. N., Nori, Franco, Hoi, I. -C.
Publikováno v:
Phys. Rev. B 107, 195441 (2023)
We consider the dynamics and stationary regime of a capacitively-shunted transmon-type qubit in front of a mirror, affected by two signals: probe and dressing signals. By varying the parameters of these signals and then analyzing the probe signal (re
Externí odkaz:
http://arxiv.org/abs/2212.02545
Autor:
Liul, M. P., Shevchenko, S. N.
Publikováno v:
Low Temp. Phys. 49, 102-108 (2023)
Strong driving of quantum systems opens opportunities for both controlling and characterizing their states. For theoretical studying of these systems properties we use the rate-equation formalism. The advantage of such approach is its relative simpli
Externí odkaz:
http://arxiv.org/abs/2209.13505
Autor:
Fil, D. V., Shevchenko, S. I.
Publikováno v:
Low Temp. Phys. 48, 429 (2022)
Dislocation model of the supersolid state of $^4$He was proposed in 1987 by one of the authors of the review. The model obtained strong support by numerous experimental and theoretical investigations from 2007 to date. In these investigations the val
Externí odkaz:
http://arxiv.org/abs/2203.09189
Autor:
Shevchenko S. L.
Publikováno v:
Український соціум, Vol 4, Iss 87, Pp 69-84 (2023)
The author considers the problem of Ukrainian war migrants in the context of the sociological study of this phenomenon. Almost from the first weeks of crossing the western border, Ukrainian war migrants became the object of surveys, which encountered
Externí odkaz:
https://doaj.org/article/d653e2bdd1904af9bd5dd47770b093cf
Autor:
Fil, D. V., Shevchenko, S. I.
Publikováno v:
Phys. Rev. B 103, 205419 (2021)
Stationary waves in the condensate of electron-hole pairs in the $n-p$ bilayer system are studied. The system demonstrates the transition from a uniform (superfluid) to a nonuniform (supersolid) state. The precursor of this transition is the appearan
Externí odkaz:
http://arxiv.org/abs/2105.09131