A Deterministic and Nondestructively-Verifiable Photon Number Source

Abstract

We present a deterministic approach based on continuous measurement and real-time quantum feedback control to prepare arbitrary photon number states of a cavity mode. The procedure passively monitors the number state actually achieved in each feedback stabilized measurement trajectory, thus providing a nondestructively verifiable photon source. The feasibility of a possible cavity QED implementation in the many-atom good-cavity coupling regime is analyzed.

References in corpus (1)

• Feedback control of quantum state reduction

Cited by in corpus (7)

• Freezing a Coherent Field Growth in a Cavity by Quantum Zeno Effect
• Quantum filter reduction for measurement-feedback control via unsupervised manifold learning
• Quantum Superposition State Production by Continuous Observations and Feedback
• Dynamical programming of continuously observed quantum systems
• Conditional preparation of states containing a definite number of photons
• Stochastic master equation for a probed system in a cavity
• Preamplified photodetectors for high-fidelity postselecting optical devices