Two-atom Rydberg blockade using direct 6S to nP excitation

被引：85

作者：

Hankin, A. M. ^{[1
,2
]}

Jau, Y. -Y. ^{[1
]}

Parazzoli, L. P. ^{[1
]}

Chou, C. W. ^{[1
]}

Armstrong, D. J. ^{[1
]}

Landahl, A. J. ^{[1
,2
]}

Biedermann, G. W. ^{[1
,2
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Univ New Mexico, Dept Phys & Astron, Ctr Quantum Informat & Control CQuIC, Albuquerque, NM 87131 USA

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 03期

关键词：

ATOMS; STATE;

D O I：

10.1103/PhysRevA.89.033416

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We explore a single-photon approach to Rydberg state excitation and Rydberg blockade. Using detailed theoretical models, we show the feasibility of direct excitation, predict the effect of background electric fields, and calculate the required interatomic distance to observe Rydberg blockade. We then measure and control the electric field environment to enable coherent control of Rydberg states. With this coherent control, we demonstrate Rydberg blockade of two atoms separated by 6.6(3) mu m. When compared with the more common two-photon excitation method, this single-photon approach is advantageous because it eliminates channels for decoherence through photon scattering and ac Stark shifts from the intermediate state while moderately increasing Doppler sensitivity.

引用

页数：9

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