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

Load-frequency control01:28

Load-frequency control

651
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
651
Frequency-Domain Interpretation of PD Control01:24

Frequency-Domain Interpretation of PD Control

359
Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
359
Time and frequency -Domain Interpretation of PI Control01:27

Time and frequency -Domain Interpretation of PI Control

405
Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
405
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

441
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
441
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

402
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
402
Common Ion Effect03:24

Common Ion Effect

46.2K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
46.2K

You might also read

Related Articles

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

Sort by
Same author

A Multimodal Wide-Field Fourier-Transform Raman Microscope.

Journal of visualized experiments : JoVE·2026
Same author

Determining body composition using different bioimpedance technologies: Is an agreement possible?

Clinical nutrition (Edinburgh, Scotland)·2025
Same author

Coherent spectroscopy with a single antiproton spin.

Nature·2025
Same author

Characterization of the hemithioindigo photoswitch and its derivatives with x-ray photoabsorption and photoemission spectroscopies.

The Journal of chemical physics·2025
Same author

Proton transport from the antimatter factory of CERN.

Nature·2025
Same author

Orders of Magnitude Improved Cyclotron-Mode Cooling for Nondestructive Spin Quantum Transition Spectroscopy with Single Trapped Antiprotons.

Physical review letters·2024

Related Experiment Video

Updated: Jan 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K

Versatile Control of ^{9}Be^{+} Ions Using a Spectrally Tailored UV Frequency Comb.

A-G Paschke1,2, G Zarantonello1,2, H Hahn1,2

  • 1Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.

Physical Review Letters
|April 13, 2019
PubMed
Summary

Researchers achieved quantum control of beryllium ions (9Be+) using a tailored optical frequency comb. This novel pulsed laser technique enables efficient state manipulation for quantum information processing in Penning traps.

More Related Videos

Recapitulation of an Ion Channel IV Curve Using Frequency Components
10:14

Recapitulation of an Ion Channel IV Curve Using Frequency Components

Published on: February 8, 2011

13.9K
Controllable Ion Channel Expression through Inducible Transient Transfection
10:00

Controllable Ion Channel Expression through Inducible Transient Transfection

Published on: February 17, 2017

9.9K

Related Experiment Videos

Last Updated: Jan 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K
Recapitulation of an Ion Channel IV Curve Using Frequency Components
10:14

Recapitulation of an Ion Channel IV Curve Using Frequency Components

Published on: February 8, 2011

13.9K
Controllable Ion Channel Expression through Inducible Transient Transfection
10:00

Controllable Ion Channel Expression through Inducible Transient Transfection

Published on: February 17, 2017

9.9K

Area of Science:

  • Quantum Information Science
  • Atomic Physics
  • Laser Spectroscopy

Background:

  • Precise control of atomic ions is crucial for quantum computing and simulation.
  • Optical frequency combs offer unique capabilities for high-resolution spectroscopy and laser manipulation.

Purpose of the Study:

  • To demonstrate quantum control of 9Be+ ions using a novel optical frequency comb technique.
  • To develop a spectrally tailored frequency comb for efficient ion manipulation.
  • To enable quantum logic and information experiments in Penning traps.

Main Methods:

  • Numerical simulations of 9Be+ ion dynamics in various magnetic fields.
  • Generation of a spectrally tailored, narrow-bandwidth optical frequency comb near 313 nm.
  • Stimulated Raman manipulation of internal and motional states of 9Be+ ions.

Main Results:

  • Demonstrated wide applicability of spectral comb control for 9Be+ ions.
  • Achieved selective and efficient generation of a tailored optical frequency comb.
  • Experimentally demonstrated internal state control and internal-motional state coupling of 9Be+ ions.

Conclusions:

  • The pulsed laser approach using a spectrally optimized optical frequency comb is effective for quantum control of 9Be+ ions.
  • This technique is a key enabler for quantum logic and quantum information experiments.
  • The method shows broad applicability across different magnetic field regimes.