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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Double time-delays induced stochastic dynamical characteristics for a metapopulation system subjected to the associated noises and a multiplicative periodic signal
TL;DR: In this paper, the authors investigated the stability of the system, the mean extinction time and stochastic resonance (SR) phenomena caused by a multiplicative periodic signal for a dual time-delayed metapopulation system subjected to cross-correlated noises.
Journal ArticleDOI
Pulsed Magnetron Sputtering of Strongly Thermochromic VO2-Based Coatings with a Transition Temperature of 22 °C onto Ultrathin Flexible Glass
Tomáš Bárta,Jaroslav Vlček,J. Houska,Stanislav Haviar,Radomír Čerstvý,Jolanta Szelwicka,Matthias Fahland,John Fahlteich +7 more
TL;DR: A scalable sputter deposition technique for the preparation of strongly thermochromic ZrO2/V0.984W0.016O2 coatings on ultrathin flexible glass and standard glass was presented in this article.
Journal ArticleDOI
Driving rapidly while remaining in control: classical shortcuts from Hamiltonian to stochastic dynamics
TL;DR: In this paper , a review of different strategies that have been developed to realize finite-time state-to-state transformations in both over and underdamped regimes, by the proper design of time-dependent control parameters/driving.
Journal ArticleDOI
Non-linear mixing in coupled photonic crystal nanobeam cavities due to cross-coupling opto-mechanical mechanisms
TL;DR: In this article, the authors investigate the coupling between mechanical and optical modes supported by coupled, freestanding, photonic crystal nanobeam cavities and show that the coupling can be significantly increased, more than an order of magnitude for the symmetric mechanical mode, due to optical resonances that arise from the interaction of the localized cavity modes with standing waves formed by the reflection from the substrate.
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Fast imaging with alternative signal for dynamic atomic force microscopy
Chibum Lee,Srinivasa M. Salapaka +1 more
TL;DR: In this paper, a model of the vertical positioning actuator is used to compensate for artifacts introduced due to its compliance in high scanning frequencies, which enables accurate sample-profile imaging even at high scanning speeds.
References
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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.