Feshbach molecules in a one-dimensional optical lattice

被引：20
|
作者：
Nygaard, N. [1 ]
Piil, R. [1 ]
Molmer, K. [1 ]
机构：
[1] Univ Aarhus, Dept Phys & Astron, Lundbeck Fdn Theoret Ctr Quantum Syst Res, DK-8000 Aarhus C, Denmark
来源：
PHYSICAL REVIEW A | 2008年 / 77卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.77.021601
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present the theory of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. Using a two-channel description of the resonance, we derive analytic results for the scattering states inside the continuum band and the discrete bound states outside the band. We identify a Fano resonance profile, and the survival probability of a molecule when swept through the Bloch band of scattering states by varying an applied magnetic field. We discuss how these results may be used to investigate the importance of the structured nature of the continuum in experiments.
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页数：4
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