Resonant electric dipole-dipole interactions between cold Rydberg atoms in a magnetic field

被引：33

作者：

Afrousheh, K. ^{[1
]}

Bohlouli-Zanjani, P.

Carter, J. D.

Mugford, A.

Martin, J. D. D.

机构：

[1] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

[2] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

来源：

PHYSICAL REVIEW A | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.73.063403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser-cooled Rb-85 atoms were optically excited to 46d(5/2) Rydberg states. A microwave pulse transferred a fraction of the atoms to the 47p(3/2) Rydberg state. The resonant electric dipole-dipole interactions between atoms in these two states were probed using the linewidth of the two-photon microwave transition 46d(5/2)-47d(5/2). The presence of a weak magnetic field approximate to 0.5 G reduced the observed line broadening, indicating that the interaction is suppressed by the field. The field removes some of the energy degeneracies responsible for the resonant interaction, and this is the basis for a quantitative model of the resulting suppression. A technique for the calibration of magnetic field strengths using the 34s(1/2)-34p(1/2) one-photon transition is also presented.

引用

页数：9

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