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A Modified Frequency Domain Condition for the Physical Realizability of Linear Quantum Stochastic Systems

Sichani, Arash Kh.; Petersen, Ian


This note is concerned with a modified version of the frequency domain physical realizability (PR) condition for linear quantum systems. We consider open quantum systems whose dynamic variables satisfy the canonical commutation relations of an open quantum harmonic oscillator and are governed by linear quantum stochastic differential equations (QSDEs). In order to correspond to physical quantum systems, these QSDEs must satisfy PR conditions. We provide a relatively simple proof that the PR...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: IEEE Transactions on Automatic Control
DOI: 10.1109/TAC.2017.2726340


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