Photoreactions with universal trimers

被引:3
作者
Bazak, Betzalel [1 ]
Barnea, Nir [1 ]
机构
[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
来源
PHYSICAL REVIEW A | 2014年 / 89卷 / 03期
基金
以色列科学基金会;
关键词
LARGE SCATTERING LENGTH; STATES; ENERGY; ATOMS; RECOMBINATION; SYSTEM;
D O I
10.1103/PhysRevA.89.030501
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Considering one-body and two-body currents, we study the photoassociation and photodissociation of universal bosonic trimers. Analyzing the relative importance of these currents, we identify two physical scenarios: (i) normal hierarchy, where naive power counting holds and the one-body current dominates, and (ii) strong hierarchy, where the one-body current is suppressed. For both scenarios we observe that at the high-frequency tail, the response function exhibits log-periodic oscillations in transition to or from any continuum state regardless of the reaction partial-wave channel. In contrast, near-threshold log-periodic oscillations appear only in the leading s-wave components. These oscillations are the fingerprints of universal Efimov physics. We discuss the relevance of this effect to contemporary experiments in ultracold atoms.
引用
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页数:5
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