Feshbach-resonant Raman photoassociation in a Bose-Einstein condensate

被引：6

作者：

Mackie, Matt ^{[1
,2
]}

Phou, Pierre ^{[1
]}

Boyce, Heather ^{[3
]}

Shinn, Mannix ^{[1
]}

Katz, Lev ^{[4
]}

机构：

[1] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

[2] Univ Connecticut, Dept Phys, Storrs, CT 06268 USA

[3] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

[4] Temple Univ, Dept Biol, Philadelphia, PA 19122 USA

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 04期

基金：

美国国家科学基金会;

关键词：

NOBEL LECTURE; MOLECULES; ATOMS; GAS; SUPERCHEMISTRY;

D O I：

10.1103/PhysRevA.84.043614

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We model the formation of stable heteronuclear molecules via pulsed Raman photoassociation of a two-component Bose-Einstein condensate near a strong Feshbach resonance, for both counterintuitive and intuitive pulse sequencing. Compared to lasers alone, weak Raman photoassociation is enhanced by as much as a factor of ten (five) for a counterintuitive (intuitive) pulse sequence, whereas strong Raman photoassociation is barely enhanced at all-regardless of pulse sequence. Stronger intra-atom, molecule, or atom-molecule collisions lead to an expected decrease in conversion efficiency, but stronger ambient inter-atom collisions lead to an unexpected increase in the efficiency of stable molecule production. Numerical results agree reasonably with an analytical approximation.

引用

页数：8

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