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pro vyhledávání: '"Tavares, T. S."'
Autor:
Tavares, T. S., Ribeiro, G. A. P.
We consider the interaction-round-a-face version of the isotropic six-vertex model. The associated spin chain is made of two coupled Heisenberg spin chains with different boundary twists. The phase diagram of the model and the long distance correlati
Externí odkaz:
http://arxiv.org/abs/2409.05814
Publikováno v:
Nucl.Phys.B 998 (2024) 116417
Integrable quantum spin chains display distinctive physical properties making them a laboratory to test and assess different states of matter. The study of the finite temperature properties is possible by use of the thermodynamic Bethe ansatz, howeve
Externí odkaz:
http://arxiv.org/abs/2311.02238
Autor:
Tavares, T. S., Ribeiro, G. A. P.
Publikováno v:
Nucl. Phys. B, 995 (2023) 116333
We consider the interaction-round-a-face version of the six-vertex model for arbitrary anisotropy parameter, which allow us to derive an integrable one-dimensional quantum Hamiltonian with three-spin interactions. We apply the quantum transfer matrix
Externí odkaz:
http://arxiv.org/abs/2307.11279
We provide a lattice regularization of all topological defects in minimal models CFTs using RSOS and anyonic spin chains. For defects of type $(1,s)$, we connect our result with the "topological symmetry" initially identified in Fibonacci anyons [Phy
Externí odkaz:
http://arxiv.org/abs/2003.11293
Publikováno v:
Commun. Math. Phys. 400, 1203-1254 (2023)
This paper is the first in a series where we attempt to define defects in critical lattice models that give rise to conformal field theory topological defects in the continuum limit. We focus mostly on models based on the Temperley-Lieb algebra, with
Externí odkaz:
http://arxiv.org/abs/1811.02551
Autor:
Tavares, T. S., Ribeiro, G. A. P.
Publikováno v:
Nucl. Phys. B, 921 (2017) 357
We study a quantum spin chain invariant by the superalgebra $osp(1|2)$. We derived non-linear integral equations for the row-to-row transfer matrix eigenvalue in order to analyze its finite size scaling behaviour and we determined its central charge.
Externí odkaz:
http://arxiv.org/abs/1702.08086
Autor:
Tavares, T. S., Ribeiro, G. A. P.
Publikováno v:
J. Stat. Mech. (2016) P093103
We study the phase diagram and finite temperature properties of an integrable generalization of the one-dimensional super-symmetric t-J model containing interactions explicitly breaking parity-time reversal (PT) symmetries. To this purpose, we apply
Externí odkaz:
http://arxiv.org/abs/1604.08861
Publikováno v:
J. Phys. A: Math. Theor. 48 (2015) 454004
We study the influence of boundary conditions on the entropy of the six-vertex model. We consider the case of fixed boundary conditions in order to argue that the entropy of the six-vertex model vary continuously from its value for ferroelectric to p
Externí odkaz:
http://arxiv.org/abs/1509.06324
Publikováno v:
J. Stat. Mech. (2015) P06016
We study the dependence of entropy [per lattice site] of six-vertex model on boundary conditions. We start with lattices of finite size and then proceed to thermodynamic limit. We argue that the six-vertex model with periodic, anti-periodic and mixed
Externí odkaz:
http://arxiv.org/abs/1501.02818
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