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A: Atomphysik

A 9: Poster I: Ultrakalte Atome und BEC

A 9.4: Poster

Dienstag, 14. März 2006, 16:30–18:30, Labsaal

Decay dynamics of a small number of 1D bosons in open potentials — •Sungyun Kim^1,2, Artem Dudarev^1,2,3, Qian Niu², Mark Raizen^2,3, and Joachim Brand¹ — ¹MPI-PKS, Nöthnitzer Str. 38, Dresden 01187 , Germany — ²Department of Physics, The University of Texas, Austin, TX 78712-1081, USA — ³CNLD, The University of Texas, Austin, TX 78712-1081, USA

We consider the decay dynamics of bosonic atoms with delta-function interaction in one dimensional potential. We examine two model situations: (i) decay of metastable several-particle states and (ii) dynamics in a well of finite depth with parameters changing in time. We treat the problems perturbatively and fully numerically. In particular we focus on the time dependence of the mean atom number in the traps.