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Optical memory based on quantized atomic center-of-mass motion

2017; Optica Publishing Group; Volume: 42; Issue: 21 Linguagem: Inglês

10.1364/ol.42.004474

1539-4794

J. P. Lopez, A. J. F. de Almeida, D. Felinto, J. W. R. Tabosa,

Quantum Information and Cryptography

We report a new type of optical memory using a pure two-level system of cesium atoms cooled by the magnetically assisted Sisyphus effect. The optical information of a probe field is stored in the coherence between quantized vibrational levels of the atoms in the potential wells of a 1-D optical lattice. The retrieved pulse shows Rabi oscillations with a frequency determined by the reading beam intensity and are qualitatively understood in terms of a simple theoretical model. The exploration of the external degrees of freedom of an atom may add another capability in the design of quantum-information protocols using light.