Matter-wave scattering from interacting bosons in an optical lattice

被引：8
作者：
Mayer, Klaus [1 ]
Rodriguez, Alberto [1 ]
Buchleitner, Andreas [1 ]
机构：
[1] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
来源：
PHYSICAL REVIEW A | 2014年 / 90卷 / 02期
关键词：
BOSE-EINSTEIN CONDENSATION; INSULATOR; GASES; SUPERFLUID; ATOMS;
D O I：
10.1103/PhysRevA.90.023629
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the scattering of matter waves from interacting bosons in a one-dimensional optical lattice, described by the Bose-Hubbard Hamiltonian. We derive analytically a formula for the inelastic cross section as a function of the atomic interaction in the lattice, employing Bogoliubov's formalism for small condensate depletion. A linear decay of the inelastic cross section for weak interaction, independent of the number of particles, condensate depletion, and system size, is found.
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页数：12
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