75 citations
2 papers
cond-mat.stat-mech2008
Variational method study of the spin-1 Ising model with biaxial crystal-field anisotropy
J. Ricardo de Sousa, N. S. Branco
The phase diagram of the spin-1 Ising model in the presence of a biaxial crystal-field anisotropy is studied within the framework of a variational approach, based on the Bogolyubov…
hep-ph2007★ 75 cited
QCD sum rules study of the meson Z^+(4430)
Su Houng Lee, Antonio Mihara, Fernando S. Navarra +1
We use QCD sum rules to study the recently observed meson , considered as a molecule with . We consider the contributions of condensates up to dime…