Ultracold collisions in the system of three helium atoms

摘要

The Faddeev differential equations for a system of three particles with a hard-core interaction are described. Numerical results on the binding energies of the He-4(3) and (HeHe2)-He-3-He-4 trimers and on ultracold collisions of He-3,He-4 atoms with He-4(2) dimers obtained with the help of those differential equations are reviewed. The results obtained for the hard-core model using the Faddeev equations are compared with analogous results obtained by alternative methods.