84 citations · 122 across the 5 of their papers we have counts for
5 papers
Tuning the thermal entanglement in a Ising- diamond chain with two impurities
I. M. Carvalho, O. Rojas, S. M. de Souza +1
We study the local thermal entanglement in a spin-1/2 Ising- diamond structure with two impurities. In this spin chain, we have the two impurities with an isolated dimer…
Rise of pairwise thermal entanglement for an alternating Ising and Heisenberg spin chain in an arbitrarily oriented magnetic field
M. Rojas, S. M. de Souza, Onofre Rojas
Typically two particles (spins) could be maximally entangled at zero temperature, and for a certain temperature the phenomenon of entanglement vanishes at the threshold temperature…
Thermodynamics of spinless fermion on triangular plaquettes or tetrahedral chain
M. Rojas, S. M. de Souza, Onofre Rojas
The new version of the article will be released after correcting the manuscript due to the missing sign.
Thermal entanglement in exactly solvable Ising-XXZ diamond chain structure
Onofre Rojas, M Rojas, N. S. Ananikian +1
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. The…
Frustrated Ising model on the Cairo pentagonal lattice
M. Rojas, Onofre Rojas, S. M. de Souza
Through the direct decoration transformation approach, we obtain a general solution for the pentagonal Ising model, showing its equivalence to the isotropic free-fermion eight-vert…