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13 March 2024 Four-photon GHZ states generated on a laser written integrated platform
Giacomo Corrielli, Mathias Pont, Andreas Fyrillas, Iris Agresti, Gonzalo Carvacho, Nicolas Maring, Pierre Emmanuelle Emeriau, Francesco Ceccarelli, Riccardo Albiero, Paulo Henrique Dias Ferreira, Niccolò Somaschi, Jean Senellart, Martina Morassi, Pascale Senellart, Fabio Sciarrino, Marco Liscidini, Nadia Belabas, Roberto Osellame
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Proceedings Volume PC12911, Quantum Computing, Communication, and Simulation IV; PC129110X (2024) https://doi.org/10.1117/12.3002374
Event: SPIE Quantum West, 2024, San Francisco, California, United States
Abstract
We present an experiment where a reconfigurable photonic processor fabricated in glass by femtosecond laser micromachining is used for the generation of four-photons GHZ entangled states, with high efficiency and fidelity. The chip is used in synergy with a bright and quasi-deterministic source of single photons based on semiconductor quantum dot. The very efficient interfacing of these two platforms is ensured by the excellent connectivity between glass photonic circuits and standard optical fibers. In addition, in order to benchmark the quality of the generated states, this processor is used to implement a quantum secret sharing protocol on chip.
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Giacomo Corrielli, Mathias Pont, Andreas Fyrillas, Iris Agresti, Gonzalo Carvacho, Nicolas Maring, Pierre Emmanuelle Emeriau, Francesco Ceccarelli, Riccardo Albiero, Paulo Henrique Dias Ferreira, Niccolò Somaschi, Jean Senellart, Martina Morassi, Pascale Senellart, Fabio Sciarrino, Marco Liscidini, Nadia Belabas, and Roberto Osellame "Four-photon GHZ states generated on a laser written integrated platform", Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC129110X (13 March 2024); https://doi.org/10.1117/12.3002374
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KEYWORDS
Quantum communications
Quantum entanglement
Photonic integrated circuits
Quantum experiments
Quantum operations
Quantum secret sharing
Quantum technologies
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