Non-Gaussian continuous-variable entanglement and steering

MK Olsen, JF Corney - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
Physical Review A—Atomic, Molecular, and Optical Physics, 2013APS
Two Kerr-squeezed optical beams can be combined in a beam splitter to produce non-
Gaussian continuous-variable entangled states. We characterize the non-Gaussian nature
of the output by calculating the third-order cumulant of quadrature variables and predict the
level of entanglement that could be generated by evaluating the Duan-Simon and Reid
Einstein-Podolsky-Rosen criteria. These states have the advantage over Gaussian states
and non-Gaussian measurement schemes in that the well known, efficient, and proven …
Two Kerr-squeezed optical beams can be combined in a beam splitter to produce non-Gaussian continuous-variable entangled states. We characterize the non-Gaussian nature of the output by calculating the third-order cumulant of quadrature variables and predict the level of entanglement that could be generated by evaluating the Duan-Simon and Reid Einstein-Podolsky-Rosen criteria. These states have the advantage over Gaussian states and non-Gaussian measurement schemes in that the well known, efficient, and proven technology of homodyne detection may be used for their characterization. A physical demonstration maintaining the important features of the model could be realized using optical fibers, beam splitters, and homodyne detection.
American Physical Society
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