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Proceedings Paper

Deterministic purity evolution via weak measurement for bipartite quantum systems
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Paper Abstract

In this paper we consider feedback control algorithms for the deterministic purification of a bipartite state consisting of two qubits, when the observer has access to only one of the qubits. We show that Hamiltonian feedback control can be used to produce deterministic evolution of the purity of either qubit individually, or both together.

Paper Details

Date Published: 13 June 2007
PDF: 9 pages
Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 66030S (13 June 2007); doi: 10.1117/12.724659
Show Author Affiliations
Charles Hill, Univ. of Liverpool (United Kingdom)
Jason Ralph, Univ. of Liverpool (United Kingdom)

Published in SPIE Proceedings Vol. 6603:
Noise and Fluctuations in Photonics, Quantum Optics, and Communications
Leon Cohen, Editor(s)

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