Microwave dressing of 87Rb Rydberg atoms strengthens effective interactions, lowering the photon-correlation g(2)(0) and increasing the blockade radius in an ensemble single-photon source.
Dephasing dynamics of Rydberg atom spin waves
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abstract
A theory of Rydberg atom interactions is used to derive analytical forms for the spin wave pair correlation function in laser-excited cold-atom vapors. This function controls the quantum statistics of light emission from dense, inhomogeneous clouds of cold atoms of various spatial dimensionalities. The results yield distinctive scaling behaviors on the microsecond timescale, including generalized exponential decay. A detailed comparison is presented with a recent experiment on a cigar-shaped atomic ensemble [Y. Dudin and A. Kuzmich, Science 336, 887 (2012)], in which Rb atoms are excited to a set of Rydberg levels.
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Enhancement of Rydberg Blockade via Microwave Dressing
Microwave dressing of 87Rb Rydberg atoms strengthens effective interactions, lowering the photon-correlation g(2)(0) and increasing the blockade radius in an ensemble single-photon source.