Quantum state manipulation of single-Cesium-atom qubit in a micro-optical trap

doi:10.1007/s11467-014-0442-0

Front. Phys.

2014, Vol. 9

Issue (5) : 634-639 https://doi.org/10.1007/s11467-014-0442-0

RESEARCH ARTICLE

Quantum state manipulation of single-Cesium-atom qubit in a micro-optical trap

Zhi-Hui Wang,Gang Li(

),Ya-Li Tian,Tian-Cai Zhang(

)

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China

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Abstract

Based on single Cesium atoms trapped in a 1064 nm microscopic optical trap we have exhibited a single qubit encoded in the Cesium “clock states”. The single qubit initialization, detection and the fast state rotation with high efficiencies are demonstrated and this state manipulation is crucial for quantum information processing. The ground states Rabi flopping rate of 229.0±0.6 kHz is realized by a two-photon Raman process. A clock states dephasing time of 3.0±0.7 ms is measured, while an irreversible homogeneous dephasing time of 124±17 ms is achieved by using the spin-echo technique. This well-controlled single atom provides an ideal quantum qubit and quantum node for quantum information processing.

Keywords qubit single atom Rabi flopping spin-echo dephasing time

Corresponding Author(s): Gang Li

Issue Date: 15 October 2014

Cite this article:

Zhi-Hui Wang,Gang Li,Ya-Li Tian, et al. Quantum state manipulation of single-Cesium-atom qubit in a micro-optical trap[J]. Front. Phys. , 2014, 9(5): 634-639.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-014-0442-0
https://academic.hep.com.cn/fop/EN/Y2014/V9/I5/634

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