Zobrazeno 1 - 10
of 657
pro vyhledávání: '"Krčmář, P."'
We propose a vertex representation of the tensor network (TN) in the anti-de Sitter space (AdS$_{2+0}$) that we model on a subset of hyperbolic lattices. The tensors form a network of regular $p$-sided polygons ($p>4$) with the coordination number fo
Externí odkaz:
http://arxiv.org/abs/2406.03426
Autor:
Marian Marschalko, Zofia Zięba, Kateřina Růžičková, Jan Růžička, Jan Kubáč, Jolanta Dąbrowska, David Sysala, David Krčmář
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract The aim of the small-scale regional engineering geological study of the Czech Republic was to evaluate the relationship between slope gradient and engineering geological zones. The research motivation was to determine the average slope gradi
Externí odkaz:
https://doaj.org/article/31c62ae28ef64943a78538a0d6e9eec2
Publikováno v:
Phys. Rev. E 105 (2022) 054112
We study classical Ising spin-$\frac{1}{2}$ models on the 2D square lattice with ferromagnetic or antiferromagnetic nearest-neighbor interactions, under the effect of a pure imaginary magnetic field. The complex Boltzmann weights of spin configuratio
Externí odkaz:
http://arxiv.org/abs/2112.09536
Thermodynamic properties of the four-dimensional cross-polytope model, the 16-cell model, which is an example of higher dimensional generalizations of the octahedron model, are studied on the square lattice. By means of the corner transfer matrix ren
Externí odkaz:
http://arxiv.org/abs/2008.09355
Publikováno v:
Acta Physica Polonica A 137 (2020) 598
The Berezinskii-Kosterlitz-Thouless (BKT) transitions of the six-state clock model on the square lattice are investigated by means of the corner-transfer matrix renormalization group method. A classical analog of the entanglement entropy $S( L, T )$
Externí odkaz:
http://arxiv.org/abs/2003.10718
Autor:
Krčmár, Roman, Zelenayová, Mária, Caha, Libor, Rapčan, Peter, Nishino, Tomotoshi, Gendiar, Andrej
Phase transition of the two- and three-state quantum Potts models on the Sierpi\'nski pyramid are studied by means of a tensor network framework, the higher-order tensor renormalization group method. Critical values of the transverse magnetic field a
Externí odkaz:
http://arxiv.org/abs/2003.09604
Publikováno v:
Phys. Rev. E 102, 012125 (2020)
We consider the symmetric two-state 16-vertex model on the square lattice whose vertex weights are invariant under any permutation of adjacent edge states. The vertex-weight parameters are restricted to a critical manifold which is self-dual under th
Externí odkaz:
http://arxiv.org/abs/2002.02757
Autor:
Ueda, Hiroshi, Okunishi, Kouichi, Harada, Kenji, Krčmár, Roman, Gendiar, Andrej, Yunoki, Seiji, Nishino, Tomotoshi
Publikováno v:
Phys. Rev. E 101, 062111 (2020)
We investigate the Berezinskii-Kosterlitz-Thouless transitions for the square-lattice six-state clock model with the corner-transfer matrix renormalization group (CTMRG). Scaling analyses for effective correlation length, magnetization, and entanglem
Externí odkaz:
http://arxiv.org/abs/2001.10176
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