Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Tomchenko, M. D."'
Autor:
Tomchenko, M. D.
Publikováno v:
Ukr. J. Phys. 64, 250 (2019)
We diagonalize the second-quantized Hamiltonian of a one-dimensional Bose gas with a nonpoint repulsive interatomic potential and zero boundary conditions. At weak coupling the solutions for the ground-state energy $E_{0}$ and the dispersion law $E(k
Externí odkaz:
http://arxiv.org/abs/1710.00326
Autor:
Tomchenko, M. D.
At the present time, it is considered that Bose crystals are formed at the cooling of a fluid, because the state of crystal is more favorable by energy. It is also believed [1,2] that no ordering factor forming a crystal is present, except for the in
Externí odkaz:
http://arxiv.org/abs/1201.2341
Autor:
Loktev, V. M., Tomchenko, M. D.
Publikováno v:
Ukr. J. Phys. v. 55, p. 901 (2010)
We find the distribution of the electromagnetic field inside and outside a dielectric disk resonator placed in He-II. It is shown that this field consists of a collection of "circular" (c-) photons. The wave function \Psi_c of a c-phonon for the He-I
Externí odkaz:
http://arxiv.org/abs/1005.5282
Autor:
Tomchenko, M. D.
Publikováno v:
Ukr. J. Phys. 50, 720 (2005)
The method of collective variables (MCV) has been used to calculate the logarithm of the He-II ground-state wave function, ln(Psi_0), to an accuracy of a first correction to the Jastrow function and, in a second approximation, the wave function Psi_k
Externí odkaz:
http://arxiv.org/abs/0904.4341
Autor:
Loktev, V. M., Tomchenko, M. D.
An attempt is made to explain the nature of the electric signal observed in He II in a second-sound standing wave. Using the general quantum-mechanical principles, we show that, due to interatomic interaction, each atom of He-II acquires a small fluc
Externí odkaz:
http://arxiv.org/abs/0806.0248
Akademický článek
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Autor:
Tomchenko, M. D.
Publikováno v:
Ukrainian Journal of Physics; Vol. 64 No. 3 (2019); 250
Український фізичний журнал; Том 64 № 3 (2019); 250
Український фізичний журнал; Том 64 № 3 (2019); 250
We diagonalize the second-quantized Hamiltonian of a one-dimensional Bose gas with a non-point repulsive interatomic potential and zero boundary conditions. At a weak coupling, the solutions for the ground-state energy E0 and the dispersion law E(k)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=issn20710194::20414b22f6bdface5a8071560cd0929b
https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018576
https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018576
Autor:
Tomchenko, M. D.1 mtomchenko@bitp.kiev.ua
Publikováno v:
Journal of Experimental & Theoretical Physics. Jan2006, Vol. 102 Issue 1, p137-148. 12p.
Autor:
Tomchenko, M. D.
We analyze the possible expansions of the interatomic potential U(|\textbf{r}_{1}-\textbf{r}_{2}|) in a Fourier series for a cyclic system and a system with boundaries. We study also the transition from exact expansions for a finite system to the exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce5c6f610fc6a2423b4bc2d9dfef251d
Akademický článek
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