Dephasing of multiparticle Rydberg excitations for fast entanglement generation.
نویسندگان
چکیده
An approach to fast entanglement generation based on Rydberg dephasing of collective excitations (spin waves) in large, optically thick atomic ensembles is proposed. Long-range 1/r(3) atomic interactions are induced by microwave mixing of opposite-parity Rydberg states. The required long coherence times are achieved via four-photon excitation and readout of long wavelength spin waves. The dephasing mechanism is shown to have favorable, approximately exponential, scaling for entanglement generation.
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ورودعنوان ژورنال:
- Physical review letters
دوره 108 3 شماره
صفحات -
تاریخ انتشار 2012