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pro vyhledávání: '"Ulyanenkov, A. P."'
Ground state of the gauge invariant Dicke model: condensation of the photons in non-classical states
We investigate the ground state of two physically motivated modifications of the Dicke model. The first modification corresponds to particles whose phase space contains only two states, for example, particles with spin 1/2 or artificially created qub
Externí odkaz:
http://arxiv.org/abs/2409.02701
We propose a method of spatial resolution enhancement in metrology (thermometry, magnetometry, pH estimation and similar methods) with blinking fluorescent nanosensors by combining sensing with super-resolution optical fluctuation imaging (SOFI). To
Externí odkaz:
http://arxiv.org/abs/2402.17391
In the present paper we show that the Hamiltonian describing the resonant interaction of $N$ two-level systems with a single-mode electromagnetic quantum field in the Coulomb gauge can be diagonalized with a high degree of accuracy using a simple bas
Externí odkaz:
http://arxiv.org/abs/2202.03545
An approach to visualize the accessible reciprocal space accounting the goniometer angles limitation and the resolution element in the reciprocal space is presented. The shapes of the accessible reciprocal space region for coplanar and non-coplanar g
Externí odkaz:
http://arxiv.org/abs/1809.10951
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B, vol. 412, 86-92, (2017)
Parametric X-ray radiation (PXR) from relativistic electrons moving in a crystal along the crystal-vacuum interface is considered. In this geometry the emission of photons is happening in the regime of extremely asymmetric diffraction (EAD). In the E
Externí odkaz:
http://arxiv.org/abs/1708.00785
Autor:
Kaganer, Vladimir, Ulyanenkova, Tatjana, Benediktovitch, Andrei, Myronov, Maksym, Ulyanenkov, Alex
Publikováno v:
J. Appl. Phys. 122, 105302 (2017)
The experimental x-ray diffraction patterns of a Si$_{0.4}$Ge$_{0.6}$/Si(001) epitaxial film with a low density of misfit dislocations are modeled by the Monte Carlo method. It is shown that an inhomogeneous distribution of 60$^\circ$ dislocations wi
Externí odkaz:
http://arxiv.org/abs/1706.02954
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Autor:
Ulyanenkov, Alexander
The Voynich manuscript is the book initially dated as fifteenth century book. It written using specific and smart coding methods. This article describes the methods how it was analyzed and how coding keys were found. The last manuscript page decoding
Externí odkaz:
http://arxiv.org/abs/1604.04149
Autor:
Baryshevsky, V. G., Batrakov, K. G., Feranchuk, I. D., Gurinovich, A. A., Grubich, A. O., Lobko, A. S., Rouba, A. A., Tarnopolsky, B. A., Safronov, P. F., Stolyarsky, V. I., Ulyanenkov, A. P.
Interaction of non-relativistic electrons with single crystal target may produce coherent x-rays. That is the result of interference between two known x-ray generation mechanisms having orientational behavior, namely parametric x-rays and coherent {\
Externí odkaz:
http://arxiv.org/abs/physics/0507036
Autor:
Feranchuk, I. D., Ulyanenkov, A. P.
Spectra of parametric X-ray radiation (PXR) are considered in the range of anomalous dispersion for one of the atoms in a crystal elementary cell. The PXR spectra are calculated both for the ultra-relativistic and non-relativistic electrons for the s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312310