Kz. Yan et Wh. Tan, A model for macroscopic quantum tunneling of Bose-Einstein condensate withattractive interaction, CHIN PHYS L, 17(9), 2000, pp. 631-633
Based on the numerical wave function solutions of neutral atoms with attrac
tive interaction in a harmonic trap, we propose an exactly solvable model f
or macroscopic quantum tunneling of a Bose condensate with attractive inter
action. me calculate the rate of macroscopic quantum tunneling from a metas
table condensate state to the collapse state and analyze the stability of t
he attractive Bose-Einstein condensation.