Conditional preparation of a non-classical state in the continuous variable regime: theoretical study

Abstract

We study the characteristics of the quantum state of light produced by a conditional preparation protocol totally performed in the continuous variable regime. It relies on conditional measurements on quantum intensity correlated bright twin beams emitted by a non-degenerate OPO above threshold. Analytical expressions as well as computer simulations of the selected state properties and preparation efficiency are developed and show that a sub-Poissonian state can be produced by this technique. Projection onto a given trigger value is studied and then extended to a finite band. The continuous variable regime offers the unique possibility to improve dramatically the preparation efficiency by choosing multiple selection bands and thus to generate a great number of sub-Poissonian states in parallel.

Submitted to Phys. Rev. A

References in corpus (3)

• Quantum state reconstruction of the single-photon Fock state
• Conditional preparation of a quantum state in the continuous variable regime: generation of a sub-Poissonian state from twin beams
• Conditional generation of sub-Poissonian light from two-mode squeezed vacuum via balanced homodyne detection on idler mode

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• Thermal-difference states of light: quantum states of heralded photons
• Quantum state of an injected TROPO above threshold : purity, Glauber function and photon number distribution
• Latent optical nonclassicality of conditionally prepared states