139 citations · 405 across the 9 of their papers we have counts for
10 papers
Two dimensional XXZ-Ising model on square-hexagon lattice
J. S. Valverde, Onofre Rojas, S. M. de Souza
We study a two dimensional XXZ-Ising on square-hexagon (4-6) lattice with spin-1/2. The phase diagram of the ground state energy is discussed, shown two different ferrimagnetic sta…
Generalized Transformation for Decorated Spin Models
Onofre Rojas, J. S. Valverde, S. M. de Souza
The paper discusses the transformation of decorated Ising models into an effective \textit{undecorated} spin models, using the most general Hamiltonian for interacting Ising models…
Phase diagram of the asymmetric tetrahedral Ising-Heisenberg chain
J. S. Valverde, Onofre Rojas, S. M. de Souza.
The asymmetric tetrahedron is composed by all edges of tetrahedron represented by Ising interaction except one, which has a Heisenberg type interaction. This asymmetric tetrahedron…
Relativistic particle dynamics in D=2+1
J. S. Valverde, M. Pazetti
We propose a SUSY variant of the action for a massless spinning particles via the inclusion of twistor variables. The action is constructed to be invariant under SUSY transformatio…
Electromagnetic field at Finite Temperature: A first order approach
R. Casana, B. M. Pimentel, J. S. Valverde
In this work we study the electromagnetic field at Finite Temperature via the massless DKP formalism. The constraint analysis is performed and the partition function for the theory…
Pseudoclassical Mechanics for the spin 0 and 1 particles
R. Casana, M Pazetti, B. M. Pimentel +1
We give an action for the massless spinning particle in pseudoclassical mechanics by using grassmann variables. The constructed action is invariant under -reparametrizations, lo…