Pritchard, J.D. and Maxwell, D. and Gauguet, A. and Weatherill, K.J. and Jones, M.P.A. and Adams, C.S. (2010) 'Cooperative atom-light interaction in a blockaded Rydberg ensemble.', Physical review letters., 105 (19). p. 193603.
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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|Publisher Web site:||http://dx.doi.org/10.1103/PhysRevLett.105.193603|
|Publisher statement:||© 2010 American Physical Society|
|Record Created:||28 Nov 2012 09:20|
|Last Modified:||28 Nov 2012 10:49|
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