Zobrazeno 1 - 10
of 104
pro vyhledávání: '"N. N. Bogolyubov"'
Autor:
N. N. Bogolyubov, A. V. Soldatov
Publikováno v:
Physics of Particles and Nuclei Letters. 19:58-65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bad82ca45a71f6f81173ab5c68e19603
https://doi.org/10.1134/s1547477122010046
https://doi.org/10.1134/s1547477122010046
Publikováno v:
Theoretical and Mathematical Physics. 195:704-717
We consider magnetic systems with the SU(3) symmetry of the exchange interaction. For degenerate equilibriums with broken magnetic and phase symmetries, we formulate classification equations for the order parameter using the concept of residual symme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ff2fe3a35dad724b3f7508203ae467c
https://doi.org/10.1134/s0040577918050069
https://doi.org/10.1134/s0040577918050069
Algebraic Aspects of the Dynamics of Quantum Multilevel Systems in the Projection Operator Technique
Autor:
N. N. Bogolyubov, A. V. Soldatov
Publikováno v:
Theoretical and Mathematical Physics. 194:220-235
Using the projection operator method, we obtain approximate time-local and time-nonlocal master equations for the reduced statistical operator of a multilevel quantum system with a finite number N of quantum eigenstates coupled simultaneously to arbi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e01defc576bc3a806d2f3a181791629
https://doi.org/10.1134/s0040577918020034
https://doi.org/10.1134/s0040577918020034
Autor:
N N Bogolyubov, A V Soldatov
Publikováno v:
Journal of Physics: Conference Series. 2056:012001
A two-level quantum emitter with broken inversion symmetry driven by external semiclassical monochromatic high-frequency electromagnetic (e.g., laser) field and damped by squeezed vacuum reservoir with finite bandwidth is presented. The squeezed vacu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c214bdebcf0affd8d56a38d569bbae6d
https://doi.org/10.1088/1742-6596/2056/1/012001
https://doi.org/10.1088/1742-6596/2056/1/012001
This book is an English translation of a collection of papers in Russian from a conference held in Moscow and St. Petersburg in 1983, 200 years after Euler's death. Two of the Russian papers in the collection are translations from the German. The pre
Autor:
N. N. Bogolyubov, A. V. Soldatov
Publikováno v:
Moscow University Physics Bulletin. 71:356-362
A variational approach is proposed that allows one to obtain in a regular way a sequence of improvable upper bounds for the ground-state energy of various polaron models confined in an external electrostatic potential. The proposed approach can be us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce2d4ce16e69993f530c73f76c2eb6ba
https://doi.org/10.3103/s0027134916040020
https://doi.org/10.3103/s0027134916040020
Autor:
A. V. Soldatov, N. N. Bogolyubov
Publikováno v:
Journal of Physics: Conference Series. 1560:012001
It is shown that a two-level quantum system with broken inversion symmetry possessing dipole moment operator with permanent non-equal diagonal matrix elements, driven by external semiclassical monochromatic high-frequency electromagnetic (laser) fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee1a807e2528fc44b3037064ef80f9c1
https://doi.org/10.1088/1742-6596/1560/1/012001
https://doi.org/10.1088/1742-6596/1560/1/012001
Autor:
D. V. Anosov, V. G. Babskiĭ, N. N. Bogolyubov, O. I. Bogoyavlenskiĭ, V. S. Bondarchuk, Yu. A. Eremin, A. V. Kazhikov, A. D. Myshkis, N. I. Nesmeyanova, V. B. Nikolaev, E. V. Zakharov
These papers in applied mathematics have been carefully selected by a joint committee of the AMS, the Association for Symbolic Logic (ASL), and the Institute of Mathematical Statistics (IMS) from publications not otherwise translated into English. Th
Publikováno v:
Theoretical and Mathematical Physics. 171:523-530
We study the dynamics of systems consisting of interacting two-level atoms and a field (microcavities). Such systems include the Jaynes-Cummings model. We formulate the problem and present a short history of it, derive a generalized kinetic equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33cc529d317763b78aa2b2f2d57ade00
https://doi.org/10.1007/s11232-012-0050-5
https://doi.org/10.1007/s11232-012-0050-5
Publikováno v:
Physics of Atomic Nuclei. 72:761-767
Classification of equilibrium states of condensed media with spontaneously broken symmetry is carried out. Conditions of residual symmetry and spatial symmetry are formulated. The connection between these symmetry conditions and equilibrium states of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc7cbabd6c968bf706aec40bf936344d
https://doi.org/10.1134/s1063778809050032
https://doi.org/10.1134/s1063778809050032