Journal ArticleDOI
Feedback for physicists: A tutorial essay on control
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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Journal ArticleDOI
Loss of Invisibility in Metamaterials under Thermal Fluctuation Induced Radiation
Journal ArticleDOI
Nonreciprocal forces enable cold-to-hot heat transfer between nanoparticles
TL;DR: In this article , the authors study the heat transfer between two nanoparticles held at different temperatures that interact through non-reciprocal forces, by combining molecular dynamics simulations with stochastic thermodynamics.
Journal ArticleDOI
Solvable model of quantum-optical feedback
V.A. Tomilin,L.V. Il'ichov +1 more
TL;DR: In this paper, a quantized optical cavity mode controlled by dissipation, two-photon source and feedback loop is studied, where the feedback is activated by detections of photons leaving the cavity and consists of rapid phase shifts of the cavity field by π.
Journal ArticleDOI
Split PID control: two sensors can be better than one
Leith Znaimer,John Bechhoefer +1 more
TL;DR: In this article, the authors explore the consequences of using two probes, one near the heater and the other near the sample, and assign the integral term to the sample probe and other terms to the heater probe.
Posted Content
The self-tuned sensitivity of circadian clocks.
TL;DR: It is shown that the circadian clock in Synechococcus elongatus can naturally tune its environmental sensitivity, through a clock-metabolism coupling quantified in recent experiments, and suggests a new class of experiments that probe the history-dependence of environmental sensitivity in biophysical sensing mechanisms.
References
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Book
Elements of information theory
Thomas M. Cover,Joy A. Thomas +1 more
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.
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System Identification: Theory for the User
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.
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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
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.