Zobrazeno 1 - 10 of 70 pro vyhledávání: '"S V Peletminskii"'
1
Broken-axisymmetry state and magnetic state diagram of spin-1 condensate through the prism of quadrupole degrees of freedom
Autor: M Bulakhov, A S Peletminskii, S V Peletminskii, Yu V Slyusarenko
We theoretically study a weakly interacting gas of spin-1 atoms with Bose-Einstein condensate in external magnetic field within the Bogoliubov approach. To this end, in contrast to previous studies, we employ the general Hamiltonian, which includes b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62816e89fde5c2bd0e517846f54a1230
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4
Magnetic phases and phase diagram of spin-1 condensate with quadrupole degrees of freedom
Autor: Yu. V. Slyusarenko, S. V. Peletminskii, M. S. Bulakhov, A. S. Peletminskii
Publikováno v: Journal of Physics A: Mathematical and Theoretical. 54:165001
We obtain and justify a many-body Hamiltonian of pairwise interacting spin-1 atoms, which includes eight generators of the SU(3) group associated with spin and quadrupole degrees of freedom. It is shown that this Hamiltonian is valid for non-local in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bd2c677472cc7a661ecda1340caa637
https://doi.org/10.1088/1751-8121/abed16
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5
Re-examining the quadratic approximation in theory of a weakly interacting Bose gas with condensate: the role of nonlocal interaction potentials
Autor: Yu. V. Slyusarenko, A. S. Peletminskii, Andrii Sotnikov, M. S. Bulakhov, S. V. Peletminskii
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics
We derive and analyze the coupled equations of quadratic approximation of the Bogoliubov model for a weakly interacting Bose gas. The first equation determines the condensate density as a variational parameter and ensures the minimum of the grand the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a293aebd20724b930220aeaa4db024c
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6
Ground state and excitations of a Bose-Einstein condensate of atoms and their diatomic bound states
Autor: S. V. Peletminskii, Yu. M. Poluektov, A. S. Peletminskii
Publikováno v: Low Temperature Physics. 40:500-507
This is a theoretical study of a many-body system of spin-zero atoms and their diatomic bound states (molecules) which form a single Bose-Einstein condensate at zero temperature. The Gross-Pitaevskii approach is used to analyze the equilibrium states
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d8e5df041ccca92f69d72f9e82bc6dc
https://doi.org/10.1063/1.4883893
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7
Quasiparticle theory of superfluid Bose systems with single-particle and pair condensates
Autor: S. V. Peletminskii, A. S. Peletminskii
Publikováno v: Low Temperature Physics. 36:693-699
A semi-phenomenological theory of superfluid Bose systems based on a quasiparticle description is examined. This theory makes it possible to study, from a unified standpoint, single-particle and pair condensates with repulsive, as well as attractive,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47fedc04d33e8c0d6646097d2599ddca
https://doi.org/10.1063/1.3490834
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9
To the 90-th anniversary of Dmitry Vasilievich Volkov's birthday
Autor: S. V. Peletminskii, Alexander Bakai, D. V. Uvarov, A.A. Zheltukhin, Yu. V. Slyusarenko, N. F. Shul’ga
Publikováno v: Ukrainian Journal of Physics; Vol. 60 No. 7 (2015); 675
Український фізичний журнал; Том 60 № 7 (2015); 675
The essay is devoted to the personality of the prominent theorist D.V. Volkov and his pioneer works in quantum field theory and elementary particle physics.
4 pages. v2: one photo and two references added, typos corrected
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2911c1fa41d140dfadd9990ff37f04a2
http://arxiv.org/abs/1506.03003
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10
Bose-Einstein condensation of heteronuclear bound states formed in a Fermi gas of two atomic species: microscopic approach
Autor: Yu. V. Slyusarenko, S. V. Peletminskii, A. S. Peletminskii
We study a many-body system of interacting fermionic atoms of two species that are in thermodynamic equilibrium with their condensed heteronuclear bound states (molecules). In order to describe such an equilibrium state, we use a microscopic approach
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::190babe4e13ce07d0d9320f1b715f1bb
http://arxiv.org/abs/1501.01177
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