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

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.

References in corpus (3)

• Multi-photon entanglement in high dimensions
• An integrated source of spectrally filtered correlated photons for large scale quantum photonic systems
• Effects of time ordering in quantum nonlinear optics

Cited by in corpus (6)

• Chip-based photon quantum state sources using nonlinear optics
• Three-Photon Discrete-Energy-Entangled W State in Optical Fiber
• One-photon Solutions to Multiqubit Multimode quantum Rabi model
• Generation of path-encoded Greenberger-Horne-Zeilinger states
• Scalable generation and detection of on-demand W states in nanophotonic circuits
• Unified generation and fast emission of arbitrary single-photon multimode $W$ states