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Physical Review Letters

Quantum Feedback Control for Deterministic Entangled Photon Generation

Masahiro Yanagisawa

Published Nov 10, 2006• 36 citations
Publisher

Abstract

We present quantum feedback control for deterministic entanglement generation at the single-photon level. The protocol of controlling both total photon number and phase difference is based on the cascade structure of cavities placed in an optical closed loop, quantum nondemolition measurement with cross-Kerr interactions, and Lyapunov stability for feedback design.

DOI
10.1103/physrevlett.97.190201

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