Direct photoassociative formation of ultracold KRb molecules in the lowest vibrational levels of the electronic ground state

被引：37

作者：

Banerjee, Jayita ^{[1
]}

Rahmlow, David ^{[1
]}

Carollo, Ryan ^{[1
]}

Bellos, Michael ^{[1
]}

Eyler, Edward E. ^{[1
]}

Gould, Phillip L. ^{[1
]}

Stwalley, William C. ^{[1
]}

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 05期

基金：

美国国家科学基金会;

关键词：

SPECTROSCOPY;

D O I：

10.1103/PhysRevA.86.053428

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report continuous direct photoassociative formation of ultracold KRb molecules in the lowest vibrational levels (nu '' = 0 - 10) of the electronic ground state (X-1 Sigma(+)), starting from K-39 and Rb-85 atoms in amagneto-optical trap. The process exploits a new-found resonant coupling between the 2(1), nu' = 165 and 4(1), nu' = 61 levels, which exhibit an almost equal admixture of the uncoupled eigenstates. The production rate of the X-1 Sigma(+) (nu '' = 0) level is estimated to be 5 x 10(3) molecules/s.

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页数：5

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