1. Integrated photonic Galton board and its application for photon counting
- Author
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Qin, Hezheng, Cheng, Risheng, Zhou, Yiyu, and Tang, Hong X.
- Subjects
Quantum Physics - Abstract
The Galton board is a desktop probability machine traditionally used to visualize the principles of statistical physics with classical particles. Here, we demonstrate a photonic Galton board that enables on-chip observation of single-photon interference. The photonic Galton board, which can be considered as a simplified Boson sampler, consists of a directional coupler matrix terminated by an array of superconducting nanowire detectors to provide spatiotemporal resolution. This design also allows for photon-number-resolving capability, making it suitable for high-speed photon counting. Our results demonstrate the compatibility between single-photon detector array and photonic integrated circuits, paving the way for implementing on-chip large-scale quantum optics experiments and photonic quantum computing., Comment: 11 pages, 4 figures
- Published
- 2024