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arXiv · 1606.01279

Generation of energy-entangled W states via parametric fluorescence in integrated devices

M. Menotti·L. Maccone·J. E. Sipe·M. Liscidini
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Abstract

Tripartite entangled states, such as GHZ and W states, are typically generated by manipulating two pairs of polarization-entangled photons in bulk optics. Here we propose a scheme to generate W states that are entangled in the energy degree of freedom in an integrated optical circuit. Our approach employs photon pairs generated by spontaneous four-wave mixing (SFWM) in a micro- ring resonator. We also present a feasible procedure for demonstrating the generation of such a state, and we compare polarization-entangled and energy-entangled schemes for the preparation of W states.

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M. Menotti, L. Maccone, J. E. Sipe, M. Liscidini. 2016-06-03. Generation of energy-entangled W states via parametric fluorescence in integrated devices. https://doi.org/10.1103/physreva.94.013845

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