Thermal entanglement in an exactly solvable Ising-XXZ diamond chain structure

O Rojas, M Rojas, NS Ananikian, SM De Souza - Physical Review A—Atomic …, 2012 - APS
Most quantum entanglement investigations are focused on two qubits or some finite (small)
chain structure, since the infinite chain structure is a considerably cumbersome task …

Pairwise thermal entanglement in the Ising-XYZ diamond chain structure in an external magnetic field

J Torrico, M Rojas, SM De Souza, O Rojas… - Europhysics …, 2014 - iopscience.iop.org
Quantum entanglement is one of the most fascinating types of correlation that can be shared
only among quantum systems. The Heisenberg chain is one of the simplest quantum chains …

Entanglement of the Ising–Heisenberg diamond spin-cluster in evolution

AR Kuzmak - Journal of Physics A: Mathematical and Theoretical, 2023 - iopscience.iop.org
In the last two decades, magnetic, thermodynamic properties and bipartite thermal
entanglement in diamond spin clusters and chains have been studied. Such spin structures …

Zero-temperature phase transitions and their anomalous influence on thermodynamic behavior in the -state Potts model on a diamond chain

Y Panov, O Rojas - Physical Review E, 2023 - APS
The q-state Potts model on a diamond chain has mathematical significance in analyzing
phase transitions and critical behaviors in diverse fields, including statistical physics …

Correlation functions for a spin-12 Ising-XYZ diamond chain: Further evidence for quasi-phases and pseudo-transitions

IM Carvalho, J Torrico, SM de Souza, O Rojas… - Annals of Physics, 2019 - Elsevier
One-dimensional systems with short-range interactions cannot exhibit a long-range order at
nonzero temperature. However, there are some particular one-dimensional models, such as …

[HTML][HTML] Zero temperature non-plateau magnetization and magnetocaloric effect in an Ising-XYZ diamond chain structure

J Torrico, M Rojas, SM de Souza, O Rojas - Physics Letters A, 2016 - Elsevier
Zero temperature non-plateau magnetization is a peculiar property of a quantum spin chain
and it sometimes appears due to different gyromagnetic factors. In this study, we illustrate a …

Low-temperature pseudo-phase-transition in an extended Hubbard diamond chain

O Rojas, SM de Souza, J Torrico, LM Veríssimo… - Physical Review E, 2021 - APS
We consider the extended Hubbard diamond chain with an arbitrary number of particles
driven by chemical potential. The interaction between dimer diamond chain and nodal …

Magnetothermal properties of the Heisenberg-Ising orthogonal-dimer chain with triangular clusters

V Ohanyan, A Honecker - Physical Review B—Condensed Matter and …, 2012 - APS
We study a spin-1/2 model with triangular XXZ clusters on the orthogonal-dimer chain in the
presence of an external magnetic field. First, we discuss the case where the triangular …

Navigating the phase diagram of quantum many-body systems in phase space

KE Hawary, M Azzouz, ME Baz, S Deffner, B Gardas… - Physical Review E, 2024 - APS
We demonstrate the unique capabilities of the Wigner function, particularly in its positive and
negative parts, for exploring the phase diagram of the spin-(1 2-1 2) and spin-(1 2-1) Ising …

Geometrical frustration of an extended hubbard diamond chain in the quasiatomic limit

O Rojas, SM De Souza, NS Ananikian - Physical Review E—Statistical …, 2012 - APS
We study the geometrical frustration of an extended Hubbard model on a diamond chain,
where vertical lines correspond to the hop** and repulsive Coulomb interaction terms …