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Non-Gaussian State Generation from Linear Elements via Feedback

Yanagisawa, Masahiro

Description

We present a feedback scheme to produce quantum non-Gaussian states from linear optical elements. Instead of traditional additive control methods, we introduce a mutiplicative feedback control and apply it to the deterministic generation of quantum superposition states. The protocol of feedback control is based on quantum nondemolition measurement of a quadrature, multifeedback structure, and Lyapunov stability for feedback design.

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/58249
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.103.203601

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