Antibunched Emission of Photon-Pairs via Quantum Zeno Blockade

Details Antibunched Emission of Photon-Pairs via Quantum Zeno Blockade Antibunched Emission of Photon-Pairs via Quantum Zeno Blockade

2011-11-29

arxiv.org/abs/1111.7018v1

Physics

Quantum Physics

to appear in Phys. Rev. Lett

Scientific paper

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 $\gtrsim10^7$ times from the state-of-the-art.

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