Generation of path-encoded Greenberger-Horne-Zeilinger states

Abstract

We study the generation of Greenberger-Horne-Zeilinger (GHZ) states of three path-encoded photons. Inspired by the seminal work of Bouwmeester et al. [1] on polarization-entangled GHZ states, we find a corresponding path representation for the photon states of an optical circuit, identify the elements required for the state generation, and propose a possible implementation of our strategy. Besides the practical advantage of employing an integrated system that can be fabricated with proven lithographic techniques, our example suggests that it is possible to enhance the generation efficiency by using microring resonators.

8 pages, 4 figures

References in corpus (7)

• All-optical signal processing platforms for CMOS compatible integrated nonlinear optics
• Manipulating multi-photon entanglement in waveguide quantum circuits
• Ultra-low power generation of twin photons in a compact silicon ring resonator
• Three-party quantum secure direct communication based on Greenberger-Horne-Zeilinger states
• A monolithically integrated polarization entangled photon pair source on a silicon chip
• Truly unentangled photon pairs without spectral filtering
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Cited by in corpus (5)

• Chip-to-chip quantum teleportation and multi-photon entanglement in silicon
• Resource-efficient analyzer of Bell and Greenberger-Horne-Zeilinger states of multiphoton systems
• Generation of a frequency-degenerate four-photon entangled state using a silicon nanowire
• Four-wave mixing in a silicon microring resonator using a self-pumping geometry
• Strategies for generating separable photon triplets in waveguides and ring resonators