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Proceedings Paper

Control of two qubit systems with Hamiltonian feedback
Author(s): Charles Hill; David Goodwin; Jason Ralph
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Paper Abstract

In this paper, we consider the control of two qubit systems in the presence of a weak measurement. In particular we consider how Hamiltonian feedback can be applied to two qubit systems, both in the case where only one qubit is measured, and in the case where a joint measurement is made of both qubits. We consider how the rate of entanglement can be increased by using a joint measurement and feedback, and also how information can be gathered about one qubit by measuring the other.

Paper Details

Date Published: 24 March 2008
PDF: 12 pages
Proc. SPIE 6976, Quantum Information and Computation VI, 69760C (24 March 2008); doi: 10.1117/12.777499
Show Author Affiliations
Charles Hill, Univ. of Liverpool (United Kingdom)
David Goodwin, Univ. of Liverpool (United Kingdom)
Jason Ralph, Univ. of Liverpool (United Kingdom)


Published in SPIE Proceedings Vol. 6976:
Quantum Information and Computation VI
Eric J. Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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