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A quantum extended Kalman filter

Emzir, Muhammad F; Woolley, Matthew J; Petersen, Ian

Description

In quantum physics, a stochastic master equation (SME) estimates the state (density operator) of a quantum system in the Schrödinger picture based on a record of measurements made on the system. In the Heisenberg picture, the SME is a quantum filter. For a linear quantum system subject to linear measurements and Gaussian noise, the dynamics may be described by quantum stochastic differential equations (QSDEs), also known as quantum Langevin equations, and the quantum filter reduces to a...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/231165
Source: Journal of Physics A: Mathematical and Theoretical
DOI: 10.1088/1751-8121/aa6e5e

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