Introduction

Bavafa-Toosi, Yazdan

doi:10.1016/b978-0-12-812748-3.00001-x

Cited by 4 publications

(1 citation statement)

References 255 publications

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“…IV, which can only be appleid to the case where the feedback loop does not form a cavity. Therefore, instead of the Nyquist's theorem, we use the Routh-Hurwitz method [36]. In our case, the system is stable if and only if every root of the characteristic polynomial function in the denominator in Eq.…”

Section: B Integratormentioning

confidence: 99%

Quantum functionalities via feedback amplification

Shimazu,

Yamamoto

2019

Preprint

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Feedback amplification is a key technique for synthesizing various important functionalities, especially in electronic circuits involving op-amps. This paper presents a quantum version of this methodology, where the general phase-preserving quantum amplifier and coherent (i.e., measurement-free) feedback are employed to construct systems that produce several useful functionalities; quantum versions of differentiator, integrator, self-oscillator, and active filters. The class of active filters includes the Butterworth filter, which can be used to enhance the capacity of an optical quantum communication channel, and the non-reciprocal amplifier, which enables back-action-free measurement of a superconducting qubit. A particularly detailed investigation is performed on the unstable active filter for realizing a broadband gravitational-wave detector; that is, the feedback amplification method is used to construct an active filter that compensates the phase delay of the signal and eventually recovers the sensitivity in the high frequency regime.

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Section: B Integratormentioning

confidence: 99%

Quantum functionalities via feedback amplification

Shimazu,

Yamamoto

2019

Preprint

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Adaptive PID Control Strategy with Online Model Parameter Identification for Dynamic Systems: Design and Simulation

Miranda,

Cajo,

Recalde

et al. 2024

Lecture Notes in Networks and Systems

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An Efficient Design and Implementation of a Quadrotor Unmanned Aerial Vehicle Using Quaternion-Based Estimator

et al. 2020

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The main goal of the research is to design a low-cost, performing quadrotor unmaned aerial vehicle (UAV) system. Because of low cost limits, the performance must be ensured by other ways. The present proposal is a quaternion-based estimator used in the control loop. In order to make the proposed solution easy to be reproduced by the reader, step-by-step instructions are given, including component choices, design, and implementation. Throughout the article, detailed description of the system model is given. The efficacy of the suggested quaternion-based predictive control is evaluated by extended experimental results.

show abstract

Introduction

Cited by 4 publications

References 255 publications

Quantum functionalities via feedback amplification

Quantum functionalities via feedback amplification

Adaptive PID Control Strategy with Online Model Parameter Identification for Dynamic Systems: Design and Simulation

An Efficient Design and Implementation of a Quadrotor Unmanned Aerial Vehicle Using Quaternion-Based Estimator

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