Experimental demonstration of an efficient, semi-device-independent photonic indistinguishability witness

2021/11/30 by Reinier van der Meer, van der Meer, Reinier, Peter Hooijschuur +24 · 1 citation
Computer Science · Engineering · #FOS: Physical sciences #Neural Networks and Reservoir Computing #Optical Network Technologies #Photonic and Optical Devices #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.2112.00067

openalex publication_date 2021/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Efficient and reliable measurements of photonic indistinguishability are crucial to solidify claims of a quantum advantage in photonics. Existing indistinguishability witnesses may be vulnerable to implementation loopholes, showing the need for a measurement which depends on as few assumptions as possible. Here, we introduce a semi-device-independent witness of photonic indistinguishability and measure it on an integrated photonic processor, certifying three-photon indistinguishability in a way that is insensitive to implementation errors in our processor.

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