Journal ArticleDOI
Feedback for physicists: A tutorial essay on control
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TLDR
In this paper, a tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy a theorist wishing to understand its broader intellectual context.Abstract:
Feedback and control theory are important ideas that should form part of the education of a physicist but rarely do. This tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy the theorist wishing to understand its broader intellectual context. The level is generally simple, although more advanced methods are also introduced. Several types of applications are discussed, as the practical uses of feedback extend far beyond the simple regulation problems where it is most often employed. Sketches are then provided of some of the broader implications and applications of control theory, especially in biology, which are topics of active research.read more
Citations
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The Ensemble Kalman Filter: Theoretical formulation and practical implementation
TL;DR: The EnKF has a large user group, and numerous publications have discussed applications and theoretical aspects of it as mentioned in this paper, and also presents new ideas and alternative interpretations which further explain the success of the EnkF.
Book
Feedback Systems: An Introduction for Scientists and Engineers
TL;DR: Feedback Systems develops transfer functions through the exponential response of a system, and is accessible across a range of disciplines that utilize feedback in physical, biological, information, and economic systems.
Journal ArticleDOI
Optical magnetometry - eScholarship
Dmitry Budker,Michael Romalis +1 more
TL;DR: In this article, the basic principles of modern optical magnetometers, discuss fundamental limitations on their performance, and describe recently explored applications for dynamical measurements of biomagnetic fields, detecting signals in NMR and MRI, inertial rotation sensing, magnetic microscopy with cold atoms, and tests of fundamental symmetries of nature.
Journal ArticleDOI
The Kuramoto model in complex networks
Francisco A. Rodrigues,Thomas K. Dm. Peron,Thomas K. Dm. Peron,Peng Ji,Peng Ji,Jürgen Kurths +5 more
TL;DR: In this article, B. Sonnenschein, E.R. dos Santos, P.J. Schultz, C.A. Ha, M.K. Choi and C.P.
Journal ArticleDOI
Controlling Complex Networks: How Much Energy Is Needed?
TL;DR: This work addresses the physically important issue of the energy required for achieving control by deriving and validating scaling laws for the lower and upper energy bounds.
References
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Journal ArticleDOI
Insight into the transfer function, gain, and oscillation onset for the pupil light reflex using nonlinear delay-differential equations
André Longtin,John Milton +1 more
TL;DR: Analogies are drawn between a physiologically relevant nonlinear delay-differential equation (DDE) model for the pupil light reflex and servo control analytic approaches and physiological insight can be obtained into the gain of the reflex and its properties.
Journal ArticleDOI
Neutralizing noise in gene networks.
TL;DR: New simulations and studies of synthetic gene networks indicate that negative feedback may counteract noise, which can lead to sizeable fluctuations in the concentrations of expressed RNA and proteins.
Book
Intelligent Control Systems: An Introduction with Examples
TL;DR: This book summarizes the fundamentals of knowledge representation, reasoning, expert systems and real-time control systems and then discusses the design, implementation verification and operation of real- time expert systems using G2 as an example.
Journal ArticleDOI
A mean field approximation in data assimilation for nonlinear dynamics
TL;DR: In this article, a suboptimal mean-field conditional analysis is obtained from a statistical mechanics of time-histories, which reduces the approximate calculation of the conditional statistics to the minimization of the effective action.
Journal ArticleDOI
Human hand moves proactively to the external stimulus: an evolutional strategy for minimizing transient error.
Fumihiko Ishida,Yasuji Sawada +1 more
TL;DR: Investigation of the proactive nature of the visual-motor system by steady and transient experiments of a hand-tracking task confirmed that the hand motion precedes on the average the target motion in steady runs within a finite frequency range of the sinusoidal target motion.