21 citations · 22 across the 2 of their papers we have counts for
2 papers
hep-ph2003★ 1 cited
Random phase approximation and its extension for the quantum O(2) anharmonic oscillator
Zoheir Aouissat, Cecile Martin
We apply the random phase approximation (RPA) and its extension called renormalized RPA to the quantum anharmonic oscillator with an O(2) symmetry. We first obtain the equation for…
nucl-th1996★ 21 cited
The Linear Sigma-Model in the 1/N-Expansion via Dynamical Boson Mappings and Applications to -Scattering
Z. Aouissat, P. Schuck, J. Wambach
We present a non-perturbative method for the study of the O(N+1)-version of the linear sigma-model. Using boson-mapping techniques, in close analogy to those well-known for fermion…