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Formulation of Uncertainty Relation Between Error and Disturbance in Quantum Measurement by Using Quantum Estimation Theory (Springer Theses)

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In this thesis, quantum estimation theory is applied to investigate uncertainty relations between error and disturbance in quantum measurement. The author argues that the best solution for clarifying the attainable bound of the error and disturbance is to invoke the estimation process from the measurement outcomes such as signals from a photodetector in a quantum optical system. The error and disturbance in terms of the Fisher information content have been successfully formulated and provide the upper bound of the accuracy of the estimation. Moreover, the attainable bound of the error and disturbance in quantum measurement has been derived.

The obtained bound is determined for the first time by the quantum fluctuations and correlation functions of the observables, which characterize the non-classical fluctuation of the observables. The result provides the upper bound of our knowledge obtained by quantum measurements.

The method developed in this thesis will be applied to a broad class of problems related to quantum measurement to build a next-generation clock standard and to successfully detect gravitational waves.
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Specificații

ISBN-13: 9784431544920
ISBN-10: 4431544925
Pagini: 130
Ilustrații: 3 schwarz-weiße und 5 farbige Abbildungen
Dimensiuni: 155 x 235 x 15 mm
Greutate: 0.38 kg
Ediția: 2014
Editura: Springer
Colecția Springer
Seria Springer Theses

Locul publicării: Tokyo, Japan

Public țintă

Research

Cuprins

Introduction.- Reviews of Uncertainty Relations.- Classical Estimation Theory.- Quantum Estimation Theory.- Expansion of Linear Operators by Generators of Lie Algebra su(d).- Lie Algebraic Approach to the Fisher Information Contents.- Error and Disturbance in Quantum Measurements.- Uncertainty Relations between Measurement Errors of Two Observables.- Uncertainty Relations between Error and Disturbance in Quantum Measurements.- Summary and Discussion.

Notă biografică

Dr. Yu Watanabe
Kyoto University
Kitashirakawa Oiwake-Cho,
Sakyo-Ku, Kyoto
606-8502 Japan
yuwata@yukawa.kyoto-u.ac.jp

Textul de pe ultima copertă

In this thesis, quantum estimation theory is applied to investigate uncertainty relations between error and disturbance in quantum measurement. The author argues that the best solution for clarifying the attainable bound of the error and disturbance is to invoke the estimation process from the measurement outcomes such as signals from a photodetector in a quantum optical system. The error and disturbance in terms of the Fisher information content have been successfully formulated and provide the upper bound of the accuracy of the estimation. Moreover, the attainable bound of the error and disturbance in quantum measurement has been derived.

The obtained bound is determined for the first time by the quantum fluctuations and correlation functions of the observables, which characterize the non-classical fluctuation of the observables. The result provides the upper bound of our knowledge obtained by quantum measurements.

The method developed in this thesis will be applied to a broad class of problems related to quantum measurement to build a next-generation clock standard and to successfully detect gravitational waves.

Caracteristici

Formulates error and disturbance in quantum measurement in terms of Fisher information
Calculates the classical and quantum Fisher information using a Lie algebraic approach
Establishes in a groundbreaking work the fundamental bound on the accuracy of one measured observable and the disturbance on its conjugate one in the spirit of Heisenberg
Nominated as an outstanding contribution by the University of Tokyo's Physics Department in 2012