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pro vyhledávání: '"Rakov, A. V."'
We investigate a quasi-two-dimensional system consisting of two species of alkali atoms confined in a specific optical lattice potential [Phys. Rev. A 95, 053608 (2017)]. In the low-energy regime, this system is governed by a unique $\mathbb{Z}_N$ ga
Externí odkaz:
http://arxiv.org/abs/2407.12109
Autor:
Rakov, V. P.
Publikováno v:
Интеллигенция и мир / Intelligentsia and the World. (2):27-39
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=231748
Autor:
Rakov, V. P.
Publikováno v:
Интеллигенция и мир / Intelligentsia and the World. (3):19-27
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=78691
Autor:
Rakov, Mykhailo V., Weyrauch, Michael
Publikováno v:
Phys. Rev. B 105, 024424 (2022)
We study the low-lying spectrum of the bilinear-biquadratic Heisenberg model in the dimerized and Haldane phases using a tensor renormalization method. At the (Takhtajan-Babujian) critical point the finite size spectrum predicted by the Wess-Zumino-W
Externí odkaz:
http://arxiv.org/abs/2111.04561
Autor:
Weyrauch, Michael, Rakov, Mykhailo V.
Publikováno v:
Phys. Rev. B 102, 104422 (2020)
We study the XXZ Heisenberg model in a staggered magnetic field using the HOTRG tensor renormalization method. Built into the tensor representation of the XXZ model is the U(1) symmetry, which is systematically maintained at each renormalization step
Externí odkaz:
http://arxiv.org/abs/2006.07306
Akademický článek
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Publikováno v:
Annalen der Physik 532, 1900449 (2020)
The transport properties and electron states in cylinder nanowires of Dirac and Weyl semimetals are studied paying special attention to the structure and properties of the surface Fermi arcs. The latter make the electric charge and current density di
Externí odkaz:
http://arxiv.org/abs/1909.10587
Autor:
Rakov, Mykhailo V., Weyrauch, Michael
Publikováno v:
Phys. Rev. B 100, 134434 (2019)
We study the XXZ Heisenberg model in a longitudinal magnetic field using a tensor renormalization method. Built into the tensor representation of the XXZ model is the U(1) symmetry, which is systematically maintained at each renormalization step. Thi
Externí odkaz:
http://arxiv.org/abs/1908.11362
Autor:
Rakov, Mykhailo V.
Publikováno v:
J. Low. Temp. Phys., Vol. 192, Iss. 1-2, pp. 75-87 (2018)
The algorithm to calculate the sets of symmetry sectors for virtual indices of U(1) symmetric matrix product states (MPS) is described. Principal differences between open (OBC) and periodic (PBC) boundary conditions are stressed, and the extension of
Externí odkaz:
http://arxiv.org/abs/1904.00274