Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Open and closed-loop control systems01:17

Open and closed-loop control systems

1.8K
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
1.8K
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

879
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
879
Second Order systems II01:18

Second Order systems II

440
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
440
Classification of Systems-II01:31

Classification of Systems-II

540
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
540
Classification of Systems-I01:26

Classification of Systems-I

640
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
640
Second Order systems I01:20

Second Order systems I

672
A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
672

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

An integrated genetic approach prioritizes closely linked candidate genes underlying an open-field behavior QTL on chicken chromosome 1.

Poultry science·2026
Same author

Non-destructive diagnosis of ambrosia beetle attacks via detection of the associated tree pathogens.

MethodsX·2026
Same author

Response to the comment on "Impact of malnutrition severity on activities of daily living recovery in patients hospitalized with COPD exacerbations: A prospective observational study".

Nutrition (Burbank, Los Angeles County, Calif.)·2026
Same author

Morphologic Fault Lines in Distinguishing Gastric Cancer pTis From pT1a in Endoscopic Submucosal Dissection Specimens: An Interobserver Study.

Pathology international·2026
Same author

Radiative processes related to superfluorescence generation from multi-excitons confined in CuCl quantum dots.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same author

Three-way interplay among plasmons, electron-hole pairs, and light: coherent electromagnetic design for efficient hot-carrier generation.

Journal of physics. Condensed matter : an Institute of Physics journal·2026

Related Experiment Video

Updated: Mar 1, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.2K

Synchronization Dynamics in a Designed Open System.

Nobuhiko Yokoshi1, Kazuki Odagiri1, Akira Ishikawa2

  • 1Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.

Physical Review Letters
|June 6, 2017
PubMed
Summary
This summary is machine-generated.

We present a unifying theory for synchronization dynamics in open systems, revealing how whispering gallery modes (WGMs) mediate coherence between optical emitters for enhanced superfluorescence.

More Related Videos

Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
05:04

Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task

Published on: September 21, 2017

6.5K
Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons
07:59

Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons

Published on: June 9, 2023

2.0K

Related Experiment Videos

Last Updated: Mar 1, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.2K
Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
05:04

Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task

Published on: September 21, 2017

6.5K
Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons
07:59

Author Spotlight: Alignment of Synchronized Time-Series Data Using the Characterizing Loss of Cell Cycle Synchrony Model for Cross-Experiment Comparisons

Published on: June 9, 2023

2.0K

Area of Science:

  • Quantum Optics
  • Condensed Matter Physics
  • Many-Body Physics

Background:

  • Synchronization phenomena are crucial in many physical systems but are poorly understood in open systems, particularly concerning propagation delays.
  • Mediators play a substantial role in synchronization, yet their specific impact on dynamics, especially delays, remains unclear.

Purpose of the Study:

  • To develop a unifying theoretical framework for synchronization dynamics in open systems.
  • To investigate the role of mediators and propagation delays in synchronization.
  • To demonstrate the framework using optical emitters on a dielectric microsphere.

Main Methods:

  • Theoretical proposal of a unifying expression for synchronization dynamics.
  • Incorporation of constituent details, mediators, and arbitrary environments into the scheme.
  • Demonstration using optical emitters on a dielectric microsphere, analyzing whispering gallery modes (WGMs).

Main Results:

  • Whispering gallery modes (WGMs) effectively bridge spatially separated optical emitters.
  • WGMs accelerate synchronized fluorescence, leading to superfluorescence.
  • Emitters overcome significant and nonuniform retardation, building pronounced coherence via WGMs.

Conclusions:

  • The developed scheme successfully illustrates the dynamical aspects of many-body synchronization in designed open systems.
  • Whispering gallery modes act as both resonators and intermediaries, balancing their roles to achieve synchronization.
  • This work contributes to understanding and designing open systems for controlled quantum phenomena.