Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Chitov, G. Y."'
The model of a one-dimensional kinetic contact process with parallel update is studied by the Monte Carlo simulations and finite-size scaling. The goal was to reveal the structure of the hidden percolative patterns (order parameters) in the active ph
Externí odkaz:
http://arxiv.org/abs/2409.16786
Autor:
Timonin, P. N., Chitov, G. Y.
Publikováno v:
J. Phys. A: Math. Theor. 48 (2015) 135003
The one-dimensional kinetic contact process with parallel update is introduced and studied by the mean-field approximation and Monte Carlo (MC) simulations. Contrary to a more conventional scenario with single active phase for 1d models with Ising-li
Externí odkaz:
http://arxiv.org/abs/1410.5146
Publikováno v:
Phys. Rev. B 83, 104423 (2011)
Dimerized antiferromagnetic spin-1/2 ladders are known to exhibit a quantum critical phase transition in the ground state, the existence or absence of which is dependent on the dimerization pattern of the ladder. The gapped phases cannot be distingui
Externí odkaz:
http://arxiv.org/abs/1009.5393
Publikováno v:
Phys.Rev.D83:045033,2011
We analyze the Mass Varying Neutrino (MaVaN) scenario. We consider a minimal model of massless Dirac fermions coupled to a scalar field, mainly in the framework of finite temperature quantum field theory. We demonstrate that the mass equation we find
Externí odkaz:
http://arxiv.org/abs/0911.1728
Autor:
Timonin, P. N., Chitov, G. Y.
The one-dimensional kinetic contact process with parallel update is introduced and studied by Monte Carlo simulations. This process is proposed to describe the plant population replication and epidemic disease spreading among them. The phase diagram
Externí odkaz:
http://arxiv.org/abs/0804.3174
Autor:
Chitov, G. Y., Gros, C.
Publikováno v:
J. Phys.: Condens. Matter 16, L415-L420 (2004)
We propose a mechanism for the observed stacking charge order in the quarter-filled ladder compound NaV2O5. Via a standard mapping of the charge degrees of freedom onto Ising spins we explain the stacking order as a result of competition between coup
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407700
Autor:
Chitov, G. Y., Gros, C.
Publikováno v:
Low Temperature Physics 31, 722-734 (2005)
We study the 2D Ising model on a square lattice with additional non-equal diagonal next-nearest neighbor interactions. The cases of classical and quantum (transverse) models are considered. Possible phases and their locations in the space of three Is
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401295
Autor:
Chitov, G. Y., Gros, C.
Publikováno v:
Phys. Rev. B 69, 104423 (2004)
We study the spin-pseudospin Hamiltonian of the Ising Model in Transverse Field (IMTF) for pseudospins, coupled to the XY-spins on a triangular lattice. This model appears from analyses of the quarter-filled ladder compound $NaV_2O_5$, and pseudospin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310494
Autor:
Chitov, G. Y., Bourbonnais, C.
Publikováno v:
Nucl.Phys. B663 (2003) 568-590
We apply the standard Wilson-Kadanoff (WK) momentum-space Renormalization Group (RG) scheme for the g-ology model of one-dimensional fermions. By explicitly carrying out calculations at the two-loop level, we show how the RG flow equations can be der
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212493
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