Antibunched emission of photon pairs via quantum Zeno blockade

Yu Ping Huang*, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


We propose a new methodology, namely, the "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 107 times from the state-of-the-art.

Original languageEnglish (US)
Article number030502
JournalPhysical review letters
Issue number3
StatePublished - Jan 18 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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