Ground-state properties of bosons in three- and two-dimensional traps

Дата и время публикации : 1998-02-03T03:32:26Z

Авторы публикации и институты :
Augusto Gonzalez (Universidad de Antioquia, Medellin, Instituto de Cibernetica, Matematica y Fisica, La Habana)
Aurora Perez (Instituto de Cibernetica, Matematica y Fisica, La Habana)

Ссылка на журнал-издание: Int.J.Mod.Phys. B12 (1998) 2129-2138
Коментарии к cтатье: LaTeX, 4 pages, 3 ps figures
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We study trapped systems of bosons at zero temperature in three and two dimensions. Conditions are fulfilled for the application of Gross-Pitaevskii theory with a positive scattering length. Series expansions for ground-state properties are obtained in both the noninteracting and the strong-coupling (Thomas-Fermi) limits. From these expansions, analytic estimates are presented in the form of two-point Pad’e approximants. We explicitly show the approximants for the total energy per particle and the chemical potential.

Category: Physics