Antibunched Emission of Photon-Pairs via Quantum Zeno Blockade

Abstract

We propose a new methodology, namely "quantum Zeno blockade," for managing light scattering at a few-photon level in general nonlinear-optical media, such as crystals, fibers, silicon microrings, and atomic vapors. Using this tool, antibunched emission of photon pairs can be achieved, leading to potent quantum-optics applications such as deterministic entanglement generation without the need for heralding. In a practical implementation using an on-chip toroidal microcavity immersed in rubidium vapor, we estimate that high-fidelity entangled photons can be produced on-demand at MHz rates or higher, corresponding to an improvement of $\gtrsim 10^7$ times from the state-of-the-art.

to appear in Phys. Rev. Lett

References in corpus (3)

• 1 Low power continuous-wave nonlinear optics in silica glass integrated waveguide structures
• Observation of two-photon absorption at low power levels using tapered optical fibers in rubidium vapor
• Optimized Heralding Schemes for Single Photons

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