1. Tailoring fusion-based photonic quantum computing schemes to quantum emitters
- Author
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Chan, Ming Lai, Bell, Thomas J., Pettersson, Love A., Chen, Susan X., Yard, Patrick, Sørensen, Anders Søndberg, and Paesani, Stefano
- Subjects
Quantum Physics - 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 below coherence times 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.
- Published
- 2024