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

Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

542
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
542
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
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

3.9K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
3.9K
Underflow Gates01:30

Underflow Gates

403
Underflow gates are vital for controlling water flow in irrigation canals. The three main types of underflow gates — vertical, radial, and drum gates — serve different purposes while ensuring effective flow management. Vertical gates move up and down, generating a free-flowing water jet; radial gates pivot to regulate the flow; and drum gates rotate for precise adjustments. The flow through these gates is influenced by downstream conditions, resulting in free or drowned outflow.Free and...
403
Phase Diagrams02:39

Phase Diagrams

49.9K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
49.9K

You might also read

Related Articles

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

Sort by
Same author

Beating Hermitian Speed Limits for Entanglement Generation via Exceptional Points in a Trapped-Ion System.

Physical review letters·2026
Same author

Liquid photonic-molecule microlasers for ultrasensitive biosensing.

Nature communications·2026
Same author

Single-particle surface-enhanced coherent anti-Stokes Raman scattering: Nanoparticle design and mechanism.

Science advances·2026
Same author

Jahn-Teller distortions induced strong negative thermal expansion in<i>α</i>-Cu<sub>2</sub>V<sub>2</sub>O<sub>7</sub>.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same author

Superadiabatic topological pumping on photonic chips.

Nature communications·2025
Same author

Topologically protected chainwise microwave-to-optical photon conversion interfaced by nitrogen-vacancy center ensembles.

Optics express·2025

Related Experiment Video

Updated: Jan 26, 2026

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
10:36

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

12.0K

Construction of robust Rydberg controlled-phase gates.

Cai-Peng Shen, Jin-Lei Wu, Shi-Lei Su

    Optics Letters
    |April 16, 2019
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a robust method for creating multi-qubit controlled-phase gates in Rydberg atoms. The new technique is faster and more resilient to errors than existing approaches.

    More Related Videos

    Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning
    08:31

    Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

    Published on: February 5, 2021

    14.9K
    Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens
    13:03

    Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens

    Published on: March 8, 2018

    11.1K

    Related Experiment Videos

    Last Updated: Jan 26, 2026

    Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
    10:36

    Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

    Published on: April 12, 2018

    12.0K
    Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning
    08:31

    Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

    Published on: February 5, 2021

    14.9K
    Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens
    13:03

    Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens

    Published on: March 8, 2018

    11.1K

    Area of Science:

    • Quantum computing
    • Atomic physics
    • Quantum information science

    Background:

    • Controlled-phase gates are essential for quantum computation.
    • Rydberg atoms offer a promising platform for implementing quantum gates.
    • Existing methods often rely on adiabatic conditions or strong interactions, limiting robustness and speed.

    Purpose of the Study:

    • To develop a robust and efficient scheme for constructing multi-qubit controlled-phase gates (CPGs) in Rydberg atoms.
    • To overcome limitations of adiabatic methods, such as stringent parameter control and strong interactions.
    • To enhance gate fidelity and reduce execution time in quantum information processing.

    Main Methods:

    • Utilizing the Lewis-Riesenfeld (LR) invariant method for quantum gate construction.
    • Designing a non-adiabatic scheme for arbitrary-phase controlled-phase gates.
    • Applying the method to a two-qubit π CPG as a specific example.

    Main Results:

    • The proposed scheme constructs robust multi-qubit CPGs without strict adiabatic conditions.
    • The method demonstrates enhanced robustness against variations in control parameters compared to adiabatic and non-adiabatic schemes.
    • The scheme achieves faster gate operation times than the adiabatic approach.
    • It requires less stringent Rydberg interaction strengths.

    Conclusions:

    • The Lewis-Riesenfeld invariant method provides a powerful tool for designing robust and efficient quantum gates in Rydberg systems.
    • This non-adiabatic approach offers significant advantages in terms of speed and resilience to experimental imperfections.
    • The developed scheme paves the way for more practical and scalable quantum computing architectures using Rydberg atoms.