Cooperative atom-light interaction in a blockaded Rydberg ensemble.
Phys Rev Lett
; 105(19): 193603, 2010 Nov 05.
Article
em En
| MEDLINE
| ID: mdl-21231168
ABSTRACT
By coupling a probe transition to a Rydberg state using electromagnetically induced transparency (EIT) we map the strong dipole-dipole interactions onto an optical field. We characterize the resulting cooperative optical nonlinearity as a function of probe strength and density. We demonstrate good quantitative agreement between the experiment and an N-atom cooperative model for N=3 atoms per blockade sphere and the n=60 Rydberg state. The measured linewidth of the EIT resonance places an upper limit on the dephasing rate of the blockade spheres of <110 kHz.
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MEDLINE
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En
Ano de publicação:
2010
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Article