Squeezing components in linear quantum feedback networks

John Edward Gough, Matthew R. James, Hendra I. Nurdin

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The aim of this article is to extend linear quantum dynamical network theory to include static Bogoliubov components (such as squeezers). Within this integrated quantum network theory, we provide general methods for cascade or series connections, as well as feedback interconnections using linear fractional transformations. In addition, we define input-output maps and transfer functions for representing components and describing convergence. We also discuss the underlying group structure in this theory arising from series interconnection. Several examples illustrate the theory.
Original languageEnglish
Article number023804
JournalPhysical Review A
Issue number2
Publication statusPublished - 03 Feb 2010


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