Quantum Random Number Generation using a Solid-State Single-Photon Source

Abstract

Quantum random number generation (QRNG) harnesses the intrinsic randomness of quantum mechanical phenomena. Demonstrations of such processes have, however, been limited to probabilistic sources, for instance, spontaneous parametric down-conversion or faint lasers, which cannot be triggered deterministically. Here, we demonstrate QRNG with a quantum emitter in hexagonal boron nitride; an emerging solid-state quantum source that can generate single photons on demand and operates at room temperature. We achieve true random number generation through the measurement of single photons exiting one of four integrated photonic waveguides, and subsequently, verify the randomness of the sequences in accordance with the National Institute of Standards and Technology benchmark suite. Our results open a new avenue to the fabrication of on-chip deterministic random number generators and other solid-state-based quantum-optical devices.

5 Pages, 3 Figures

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• Sensitive single-photon test of extended quantum theory with 2D hexagonal boron nitride
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• Multi-bit quantum random number generator from path-entangled single photons
• Generation and entanglement study of generalized N-mode single photon perfect W-states
• Photon statistics analysis of h-BN quantum emitters with pulsed and continuous-wave excitation
• Beamsplitter-free, high bit-rate, quantum random number generator based on temporal and spatial correlations of heralded single-photons
• Demonstration of Lossy Linear Transformations and Two-Photon Interference on a Photonic Chip
• Free-Space Quantum Key Distribution with Single Photons from Defects in Hexagonal Boron Nitride