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Dipole blockade and quantum information processing in mesoscopic atomic ensembles.

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 nonclassical photonic states and for scalable quantum logic gates. An example involving a cold Rydberg gas is analyzed.
Publication status:
Published

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Journal:
Physical review letters
Volume:
87
Issue:
3
Pages:
037901
Publication date:
2001-07-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:bb9e638e-df2c-494c-bd33-22144dd12653
Source identifiers:
8570
Local pid:
pubs:8570
Language:
English

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