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Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles

Journal Article · · Physical Review Letters
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 nonclassical photonic states and for scalable quantum logic gates. An example involving a cold Rydberg gas is analyzed.
Sponsoring Organization:
(US)
OSTI ID:
40277139
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 87; ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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