A theoretical framework for photon-subtraction with non-mode selective resources

Abstract

This work establishes a versatile theoretical framework that explicitly describes single-photon subtraction from multimode quantum light in the context of non-Gaussian state generation and manipulation. The treatment focuses on easy-to-implement configurations in which no mode-selective operation is available and evaluates features and advantages of scheme where only simple filtering stages are employed on the experiments. Such configuration, by considerably reducing the experimental overheads, makes experiments involving single photon subtraction easier to be implemented. Obtained theoretical framework allows retrieving, given a multimode input state, optimal conditions required to herald and then to detect non-Gaussian states, providing a practical and powerful toolbox for experiments' design. The application of the proposed approach to the case study of Schrödinger kitten preparation starting from a frequency multimode squeezed state illustrates the impact of the derived theoretical tools.

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Cited by in corpus (4)

• Non-Gaussian quantum state generation by multi-photon subtraction at the telecommunication wavelength
• Plug-&-play generation of non-Gaussian states of light at a telecom wavelength
• Theory of Multimode Squeezed Light Generation in Lossy Media
• Correlations for subsets of particles in symmetric states: what photons are doing within a beam of light when the rest are ignored