Light-induced fictitious magnetic fields for quantum storage in cold atomic ensembles

• URL: http://arxiv.org/abs/2406.08251v1
• Date: Wed, 12 Jun 2024 14:20:20 GMT
• Title: Light-induced fictitious magnetic fields for quantum storage in cold atomic ensembles
• Authors: Jianmin Wang, Liang Dong, Xingchang Wang, Zihan Zhou, Ying Zuo, Georgios A. Siviloglou, J. F. Chen,
• Abstract summary: We have demonstrated that optically generated fictitious magnetic fields can be utilized to extend the lifetime of quantum memories in cold atomic ensembles. The advantage of the use of fictitious magnetic fields for quantum storage stems from the speed and spatial precision that these fields can be synthesized.
• Score: 20.77204722797697
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this work, we have demonstrated that optically generated fictitious magnetic fields can be utilized to extend the lifetime of quantum memories in cold atomic ensembles. All the degrees of freedom of an AC Stark shift such as polarization, spatial profile, and temporal waveform can be readily controlled in a precise manner. Temporal fluctuations over several experimental cycles, and spatial inhomogeneities along a cold atomic gas have been compensated by an optical beam. The advantage of the use of fictitious magnetic fields for quantum storage stems from the speed and spatial precision that these fields can be synthesized. Our simple and versatile technique can find widespread application in coherent pulse and single-photon storage in any atomic species.

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