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
More filters
Journal ArticleDOI
Continuous phase stabilization and active interferometer control using two modes
TL;DR: In this paper, a computer-based active interferometer stabilization method that can be set to an arbitrary phase difference and does not rely on modulation of the interfering beams is presented.
Posted Content
Thermodynamic implications of non-reciprocity
TL;DR: In this article, the authors study the thermodynamic properties induced by non-reciprocally coupled interactions between stochastic degrees of freedom in time and space-continuous systems.
Electro-mechanical properties of spoke-loaded superconducting cavities
TL;DR: In this article, the electro-mechanical properties of superconducting spoke-loaded cavities developed for high-intensity ionlinac applications, such as the cw ANL Advanced Exotic Beams Laboratory (AEBL) driver linac and the pulsed FNAL High Intensity Neutrino Source (HINS), were analyzed.
Journal ArticleDOI
NQontrol: An open-source platform for digital control-loops in quantum-optical experiments
Christian Darsow-Fromm,Luis Dekant,Stephan Grebien,Maik Schröder,Roman Schnabel,Sebastian Steinlechner +5 more
TL;DR: NQontrol, a digital feedback-control solution based on the ADwin platform that delivers eight simultaneous feedback loops running with 200 kHz sampling frequency and offers five second-order filtering sections per channel for flexible shaping of the feedback loop is presented.
Journal ArticleDOI
Feedback traps for virtual potentials.
Momčilo Gavrilov,John Bechhoefer +1 more
TL;DR: Feedback traps are tools for trapping and manipulating single charged objects, such as molecules in solution as discussed by the authors, using feedback to counteract the Brownian motion of a molecule of interest, and they can do more than trap molecules: they can also subject a target object to forces that are calculated to be the gradient of a desired potential function U(x ).
References
More filters
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.
Book
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.
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
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.