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arXiv · 2410.06784

Tailoring fusion-based photonic quantum computing schemes to quantum emitters

Ming Lai Chan·Thomas J. Bell·Love A. Pettersson·Susan X. Chen·Patrick Yard·Anders Søndberg Sørensen·Stefano Paesani
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Abstract

Fusion-based quantum computation is a promising quantum computing model where small-sized photonic resource states are simultaneously entangled and measured by fusion gates. Such operations can be readily implemented with scalable photonic hardware: resource states can be deterministically generated by quantum emitters and fusions require only shallow linear-optical circuits. Here, we propose fusion-based architectures tailored to the capabilities and noise models in quantum emitters. We show that high tolerance to dominant physical error mechanisms can be achieved, with fault-tolerance thresholds of 8% for photon loss, 4% for photon distinguishability between emitters, and spin noise thresholds well above memory-induced errors for typical spin-photon interfaces. Our construction and analysis provide guidelines for the development of photonic quantum hardware targeting fault-tolerant applications with quantum emitters.

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Ming Lai Chan, Thomas J. Bell, Love A. Pettersson, Susan X. Chen, Patrick Yard, Anders Søndberg Sørensen, Stefano Paesani. 2024-10-09. Tailoring fusion-based photonic quantum computing schemes to quantum emitters. https://doi.org/10.1103/prxquantum.6.020304

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