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Journal ArticleDOI

Feedback for physicists: A tutorial essay on control

John Bechhoefer
- 31 Aug 2005 - 
- Vol. 77, Iss: 3, pp 783-836
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.

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Citations
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Journal ArticleDOI

Dissipation Reduction and Information-to-Measurement Conversion in DNA Pulling Experiments with Feedback Protocols

TL;DR: In this paper, a general feedback protocol based on multiple measurements that includes either discrete-time or continuous-time feedback is proposed to reduce the dissipation of DNA hairpins with optical tweezers.
Journal ArticleDOI

Cavityless self-organization of ultracold atoms due to the feedback-induced phase transition

TL;DR: In this article, a Bose-Einstein condensate is placed in an optical potential with the depth that is feedback-controlled according to the intensity of the Bragg-reflected probe light.
Journal ArticleDOI

Dynamics of Nonlinear Feedback Control

TL;DR: In this paper, the authors compare models in which the input is multiplied by a dynamic gain (multiplicative control) with models with a dynamic attenuation (divisive control), and find conditions under which overshoots and undershoots of the output relative to the steady-state output occur when the models are stimulated with low-pass filtered steps.

Monte Carlo Simulations of Single-Molecule Fluorescence Detection Experiments

TL;DR: In this article, Monte Carlo simulations of the physical processes that occur during the delivery and trapping of a single-molecule solution are presented to understand the constraints imposed by experimental limitations, such as the latency of feedback, the maximum achievable speed of electrokinetic flow, and photophysical processes such as triplet crossing and photobleaching.
References
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Book

Elements of information theory

TL;DR: The author examines the role of entropy, inequality, and randomness in the design of codes and the construction of codes in the rapidly changing environment.
Book

System Identification: Theory for the User

Lennart Ljung
TL;DR: Das Buch behandelt die Systemidentifizierung in dem theoretischen Bereich, der direkte Auswirkungen auf Verstaendnis and praktische Anwendung der verschiedenen Verfahren zur IdentifIZierung hat.
Journal ArticleDOI

Statistical mechanics of complex networks

TL;DR: In this paper, a simple model based on the power-law degree distribution of real networks was proposed, which was able to reproduce the power law degree distribution in real networks and to capture the evolution of networks, not just their static topology.
Journal ArticleDOI

The Structure and Function of Complex Networks

Mark Newman
- 01 Jan 2003 - 
TL;DR: Developments in this field are reviewed, including such concepts as the small-world effect, degree distributions, clustering, network correlations, random graph models, models of network growth and preferential attachment, and dynamical processes taking place on networks.
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