1999/10/31 by A. K. Motovilov, A.K. Motovilov, W. Sandhas +4 · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Non-Hermitian Physics #Quantum, superfluid, helium dynamics #cond-mat #nucl-th #physics.atm-clus #physics.atom-ph #physics.chem-ph
paper · pdf · doi:10.1007/s100530170284
published as Eur.Phys.J. D13 (2001) 33-41 · RevTeX, 14 pages, 1 eps-figure; list of references has been extended and some minor changes of the text have been done
arxiv created 1999/11/10 · openalex publication_date 2001/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The 4He3 bound states and the scattering of a 4He atom off a 4He dimer at ultra-low energies are investigated using a hard-core version of the Faddeev differential equations. Various realistic 4He-4He interactions were employed, amomg them the LM2M2 potential by Aziz and Slaman and the recent TTY potential by Tang, Toennies and Yiu. The ground state and the excited (Efimov) state obtained are compared with other results. The scattering lengths and the atom-diatom phase shifts were calculated for center of mass energies up to 2.45 mK. It was found that the LM2M2 and TTY potentials, although of quite different structure, give practically the same bound-state and scattering results.