Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Timonin, P. N."'
Autor:
Timonin, Aleksandr N.
Publikováno v:
Известия Саратовского университета: Новая серия. Серия Философия. Психология. Педагогика, Vol 24, Iss 1, Pp 107-111 (2024)
Introduction. In the realities of modern society experiencing the processes of globalization and informatization, there is an increasing demand for young professionals with the skills and abilities to analyze large amounts of information, able to mak
Externí odkaz:
https://doaj.org/article/eae9f7671ae04d66b30b87adc09a9ee9
Publikováno v:
Phys. Rev. B 106, 125146 (2022)
We study the exactly solvable 1D model: the dimerized $XY$ chain with uniform and staggered transverse fields, equivalent upon fermionization to the noninteracting dimerized Kitaev-Majorana chain with modulation. The model has three known gapped phas
Externí odkaz:
http://arxiv.org/abs/2207.01147
Autor:
Timonin, P. N., Chitov, Gennady Y.
Publikováno v:
Phys. Rev. B 104, 045106 (2021)
The modulation is analyzed from the analytical properties of zeros of free fermionic partition function on the complex plane of wave numbers. It is shown how these properties are related to the oscillations of correlation functions. This approach can
Externí odkaz:
http://arxiv.org/abs/2105.01307
Autor:
Timonin, P. N.
Publikováno v:
Proc. R. Soc. A, v.476 is.2240 (2020)
The percolation of Potts spins with equal values in Potts model on graphs (networks) is considered. The general method for finding the Potts clusters size distributions is developed. It allows for full description of percolation transition when giant
Externí odkaz:
http://arxiv.org/abs/2003.10669
Publikováno v:
Phys. Rev. B 100, 104428 (2019)
The phase diagram and the order parameters of the exactly solvable quantum 1D model are analysed. The model in its spin representation is the dimerized XY spin chain in the presence of uniform and staggered transverse fields. In the fermionic represe
Externí odkaz:
http://arxiv.org/abs/1908.06962
Autor:
Timonin, P. N.
Publikováno v:
Physica A, 527 (2019) 121402
The statistical mechanics method is developed for determination of generating function of like-sign spin clusters' size distribution in Ising model as modification of Ising-Potts model by K. K. Murata (1979). It is applied to the ferromagnetic Ising
Externí odkaz:
http://arxiv.org/abs/1809.05806
Autor:
Timonin, P. N.
Publikováno v:
Phys. Rev. E 97, 052119 (2018)
High-density (HD) percolation describes the percolation over specific $\kappa$ -clusters, which are the compact sets of sites each connected to $\kappa$ nearest filled sites at least. It takes place in the classical patterns of independently distribu
Externí odkaz:
http://arxiv.org/abs/1803.03785
Autor:
Timonin, P. N., Chitov, Gennady Y.
Publikováno v:
Phys. Rev. E 96, 062123 (2017)
We report the new exact results on one of the best studied models in statistical physics: the classical antiferromagnetic Ising chain in a magnetic field. We show that the model possesses an infinite cascade of thermal phase transitions (also known a
Externí odkaz:
http://arxiv.org/abs/1707.06365
Autor:
Timonin, P. N.
Publikováno v:
Physica A, 492 (2018) 2292
To address some physical properties of percolating systems it can be useful to know the degree distributions in finite clusters along with their size distribution. Here we show that to achieve this aim for classical bond percolation one can use the $
Externí odkaz:
http://arxiv.org/abs/1704.07915
Autor:
Timonin, P. N.
Publikováno v:
JETP, 122 (2016) 1052
The isotropic spin one-half XY chain in transverse field (XX chain) has specific ground state phase with permanent criticality (quasi-long-range ordered, QLRO, phase) which exists in a field less than nearest-neighbor exchange. It is characterized by
Externí odkaz:
http://arxiv.org/abs/1508.05692