Journal of the Optical Society of America B
Nondeterministic scheme for preparation of nonmaximal entanglement between two atomic ensembles
Peng Xue, Guang‐Can Guo
Abstract
We propose an experimentally feasible scheme to generate nonmaximal entanglement between two atomic ensembles. The degree of entanglement is readily tunable. The scheme involves laser manipulation of atomic ensembles; the setup includes adjustable quarter- and half-wave plates, a beam splitter, polarizing beam splitters, and single-photon detectors, and fits well the state of current experimental technology. Finally, we use the nonmaximally entangled state of ensembles to demonstrate quantum nonlocality by detecting the Clauser–Horne–Shimony–Holt inequality.