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Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles

M. D. Lukin·M. Fleischhauer·R. Cote·L. M. Duan·D. Jaksch·J. I. Cirac·P. Zoller
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Abstract

We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong dipole-dipole interactions. The resulting ``dipole blockade'' can be used to inhibit transitions into all but singly excited collective states. This can be employed for a controlled generation of collective atomic spin states as well as non-classical photonic states and for scalable quantum logic gates. An example involving a cold Rydberg gas is analyzed.

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M. D. Lukin, M. Fleischhauer, R. Cote, L. M. Duan, D. Jaksch, J. I. Cirac, P. Zoller. 2000-11-07. Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles. https://doi.org/10.1103/physrevlett.87.037901

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