Friday, July 5, 2013

1307.1180 (B. Wilson et al.)

A geometric wave function for few interacting bosons in a harmonic trap    [PDF]

B. Wilson, A. Foerster, C. C. N. Kuhn, I. Roditi, D. Rubeni
We establish a new geometric wave function that combined with a variational principle efficiently describes a system of bosons interacting in a one-dimensional trap. By means of a a combination of the exact wave function solution for contact interactions and the asymptotic behaviour of the harmonic potential solution we obtain the ground state energy, probability density and profiles of a few boson system in a harmonic trap. We are able to access all regimes, ranging from the strongly attractive to the strongly repulsive one with an original and simple formulation.
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