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Proceedings Paper

Noisy quantum measurement of solid state qubits
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Paper Abstract

The quantum evolution of an individual solid-state qubit during the process of its continuous measurement can be described by the recently developed Bayesian formalism. In contrast to the conventional ensemble-averaged formalism, it takes into account the measurement record (in a way similar to the standard Bayesian analysis) and therefore is able to consider individual realizations of the measurement process. The formalism provides testable experimental predictions and can be used for the analysis of a quantum feedback control of solid-state qubits. The Bayesian formalism can be also applied to the continuous measurement of entangled qubits; in particular, it shows how to create a fully entangled pair of qubits without their direct interaction, just by measuring them with an equally coupled detector.

Paper Details

Date Published: 8 May 2003
PDF: 15 pages
Proc. SPIE 5115, Noise and Information in Nanoelectronics, Sensors, and Standards, (8 May 2003); doi: 10.1117/12.488822
Show Author Affiliations
Alexander N. Korotkov, Univ. of California/Riverside (United States)


Published in SPIE Proceedings Vol. 5115:
Noise and Information in Nanoelectronics, Sensors, and Standards
Laszlo B. Kish; Frederick Green; Giuseppe Iannaccone; John R. Vig, Editor(s)

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