62 citations · 122 across the 5 of their papers we have counts for
5 papers
Quantum Rotors on the AB Chain with Competing Interactions
Antônio S. F. Tenório, R. R. Montenegro-Filho, M. D. Coutinho-Filho
We present the ground state phase diagram of quantum-rotor chains with competing interactions (frustration) calculated through cluster variational mean field approaches.…
Quantum phase transitions in alternating spin-(1/2, 5/2) Heisenberg chains
A. S. F. Tenório, R. R. Montenegro-Filho, M. D. Coutinho-Filho
The ground state spin-wave excitations and thermodynamic properties of two types of ferrimagnetic chains are investigated: the alternating spin-1/2 spin-5/2 chain and a similar cha…
Dispersion forces between an atom and a perfectly conducting wedge
T. N. C. Mendes, F. S. S. Rosa, A. Tenorio +1
We consider the interaction between an electrically polarizable atom in its fundamental state and a wedge constituted by two semi-infinite perfectly conducting plates. Using a form…
Spontaneous emission of an atom near a wedge
F. S. S. Rosa, T. N. C. Mendes, A. Tenorio +1
It is a well known fact that non-trivial boundary conditions affect the interaction between atoms and the always present quantized electromagnetic field. In this paper, we focus on…
Zeta function method and repulsive Casimir forces for an unusual pair of plates at finite temperature
F. C. Santos, A. Tenorio, A. C. Tort
We apply the generalized zeta function method to compute the Casimir energy and pressure between an unusual pair of parallel plates at finite temperature, namely: a perfectly condu…