Ultracold Dense Samples of Dipolar RbCs Molecules in the Rovibrational and Hyperfine Ground State

被引：459

作者：

Takekoshi, Tetsu ^{[1
,2
]}

Reichsoellner, Lukas ^{[1
]}

Schindewolf, Andreas ^{[1
]}

Hutson, Jeremy M. ^{[3
]}

Le Sueur, C. Ruth ^{[3
]}

Dulieu, Olivier ^{[4
]}

Ferlaino, Francesca ^{[1
]}

Grimm, Rudolf ^{[1
,2
]}

Naegerl, Hanns-Christoph ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

[2] Austrian Acad Sci, Inst Quantenopt Quanteninformat, A-6020 Innsbruck, Austria

[3] Univ Durham, Joint Quantum Ctr JQC Durham Newcastle, Dept Chem, Durham DH1 3LE, England

[4] Univ Paris 11, CNRS, Lab Aime Cotton, F-91405 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 20期

基金：

奥地利科学基金会; 英国工程与自然科学研究理事会;

关键词：

COHERENT POPULATION TRANSFER; MULTILEVEL SYSTEMS; MAGNETIC SUBLEVELS; POLAR-MOLECULES; QUANTUM GASES;

D O I：

10.1103/PhysRevLett.113.205301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We produce ultracold dense trapped samples of (RbCs)-Rb-87-Cs-133 molecules in their rovibrational ground state, with full nuclear hyperfine state control, by stimulated Raman adiabatic passage (STIRAP) with efficiencies of 90%. We observe the onset of hyperfine-changing collisions when the magnetic field is ramped so that the molecules are no longer in the hyperfine ground state. A strong quadratic shift of the transition frequencies as a function of applied electric field shows the strongly dipolar character of the RbCs ground-state molecule. Our results open up the prospect of realizing stable bosonic dipolar quantum gases with ultracold molecules.

引用

页数：5

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