42 citations · 69 across the 14 of their papers we have counts for
14 papers
Persistent currents, deformation and collectivity in the many-boson yrast problem on the circle
E. J. V. de Passos, A. F. R. de Toledo Piza
Properties of the yrast states of a system of bosons confined to a one-dimensional ring and interacting via contact forces is examined both variationally and by numerical diago…
Dispersion and uncertainty in multislit matter wave diffraction
G. Glionna, A. H. Blin, B. Hiller +3
We show that single and multislit experiments involving matter waves may be constructed to assess correlations between the position and momentum of a single free particle. These co…
Semiclassical coherent state propagator for systems with spin
A. D. Ribeiro, M. A. M. de Aguiar, A. F. R. de Toledo Piza
We derive the semiclassical limit of the coherent state propagator for systems with two degrees of freedom of which one degree of freedom is canonical and the other a spin. Systems…
Generalization of the Hartree-Fock-Bogoliubov theory: one and two quasiparticle excitations
Paolo Tommasini, E. J. V. de Passos, M. O. C. Pires +1
We present a generalization of the Hartree-Fock Bogoliubov (HFB) theory in which the coupling between one and two quasi-particles is taken into account.This is done by writing the…
Molecular Signatures in Hybrid Atomic/Molecular Bose-Einstein Condensates
Chi-Yong Lin, Paolo Tommasini, E. J. V. de Passos +3
As it was proposed and recently verified experimentally, the mechanism of Feshbach resonance in a condensate can create a second condensate component of molecules that coexists wit…
Giant monopole resonance and nuclear compression modulus for 40Ca and 16O
D. Galetti, A. F. R. de Toledo Piza
Using a collective potential derived on the basis of the Generator Coordinate Method with Skyrme interactions we obtain values for the compression modulus of 40Ca which are in good…