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

Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

6.5K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
6.5K
Three-Winding Transformers01:19

Three-Winding Transformers

928
Three identical single-phase transformers can be configured to form a three-phase transformer connection, which involves high-voltage and low-voltage windings. The high-voltage windings are denoted by capital letters A-B-C, while the low-voltage windings are labeled with lowercase letters a-b-c, representing their respective phases. This notation helps distinguish between the high and low voltage sides of the transformer.
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
928
Control of Power Flow01:30

Control of Power Flow

772
There are several methods to control power flow in power systems:
772
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

445
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
445
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

3.4K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
3.4K
Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

4.6K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process, commutators...
4.6K

You might also read

Related Articles

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

Sort by
Same author

Qubit-Efficient Quantum Chemistry with the ADAPT Variational Quantum Eigensolver and Double Unitary Downfolding.

Journal of chemical theory and computation·2025
Same author

Ballast Charges for Semiconductor Spin Qubits.

Physical review letters·2025
Same author

Strong coupling phases of the spin-orbit-coupled spin-1 Bose-Hubbard chain: odd integer Mott lobes and helical magnetic phases.

Physical review. A·2024
Same author

Quantum self-consistent equation-of-motion method for computing molecular excitation energies, ionization potentials, and electron affinities on a quantum computer.

Chemical science·2023
Same author

Symmetry Breaking Slows Convergence of the ADAPT Variational Quantum Eigensolver.

Journal of chemical theory and computation·2022
Same author

Fermionic Many-Body Localization for Random and Quasiperiodic Systems in the Presence of Short- and Long-Range Interactions.

Physical review letters·2022
Same journal

Therapeutic potential of crude protein extracts from two Egyptian freshwater snails Lanistes carinatus and Bellamya unicolor.

Scientific reports·2026
Same journal

Microbial contamination of donor corneas and post-keratoplasty endophthalmitis: a comparison between Japanese and U.S. eye banks using cold storage.

Scientific reports·2026
Same journal

Prevalence and contributing factors of virological non-suppression among adult patients on first-line antiretroviral therapy in tertiary hospitals in Ethiopia.

Scientific reports·2026
Same journal

An in vitro comparison of color stability between alkasite and different restorative materials in various staining solutions.

Scientific reports·2026
Same journal

Toward accessible mRNA LNP formulation: systematic evaluation of mixing strategies and key parameters.

Scientific reports·2026
Same journal

A network analysis of personality traits, mentalizing, and psychological health in Chinese college students.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Apr 6, 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

9.8K

Robust quantum control using smooth pulses and topological winding.

Edwin Barnes1,2, Xin Wang3, S Das Sarma1,2

  • 1Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA.

Scientific Reports
|August 5, 2015
PubMed
Summary
This summary is machine-generated.

Environmental decoherence is a major hurdle for quantum technologies. This study introduces a method to cancel leading-order noise errors in qubits by precisely controlling the driving field, enabling robust quantum gates.

More Related Videos

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.2K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

Related Experiment Videos

Last Updated: Apr 6, 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

9.8K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

15.2K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Condensed Matter Physics

Background:

  • Decoherence from environmental interactions poses a significant challenge to controlling coherent quantum systems.
  • Achieving high-fidelity quantum operations is crucial for the advancement of quantum technologies.

Purpose of the Study:

  • To develop an analytical approach for identifying constraints on driving fields to cancel noise-induced errors in qubit evolution.
  • To demonstrate a method for constructing robust quantum gates resilient to environmental noise.

Main Methods:

  • Derived explicit constraints on driving fields necessary and sufficient for exact cancellation of leading-order noise errors.
  • Investigated noise from qubit energy splitting fluctuations and driving field fluctuations.
  • Recasted qubit wavefunction phase as a topological winding number to satisfy noise-cancelation conditions.

Main Results:

  • Identified specific driving field constraints that lead to exact cancellation of the leading-order noise-induced errors.
  • Successfully demonstrated the construction of robust quantum gates for phosphorous donors in silicon and nitrogen-vacancy centers in diamond.

Conclusions:

  • The proposed analytical method provides a pathway to mitigate decoherence in quantum systems.
  • This approach enables the creation of robust quantum gates, advancing the development of practical quantum technologies.