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

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra. Schrödinger...
Free Energy Changes for Nonstandard States03:25

Free Energy Changes for Nonstandard States

The free energy change for a process taking place with reactants and products present under nonstandard conditions (pressures other than 1 bar; concentrations other than 1 M) is related to the standard free energy change according to this equation:
The Role of Ion Channels in Neuronal Computation01:19

The Role of Ion Channels in Neuronal Computation

A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...

You might also read

Related Articles

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

Sort by
Same author

Observing emergent hydrodynamics in a long-range quantum magnet.

Science (New York, N.Y.)·2022
Same author

Author Correction: Self-verifying variational quantum simulation of lattice models.

Nature·2020
Same author

Self-verifying variational quantum simulation of lattice models.

Nature·2019
Same author

Hexapartite Entanglement in an above-Threshold Optical Parametric Oscillator.

Physical review letters·2018
Same author

New Methods for Testing Lorentz Invariance with Atomic Systems.

Physical review letters·2018
Same author

Revealing Quantum Statistics with a Pair of Distant Atoms.

Physical review letters·2017

Related Experiment Video

Updated: Jun 14, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

Realization of universal ion-trap quantum computation with decoherence-free qubits.

T Monz1, K Kim, A S Villar

  • 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria.

Physical Review Letters
|April 7, 2010
PubMed
Summary

Researchers developed quantum gates for decoherence-free ion qubits, enabling the first controlled-NOT gate. This advances error-free, scalable quantum computing by protecting quantum information from environmental noise.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Related Experiment Videos

Last Updated: Jun 14, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Atomic Physics

Background:

  • Environmental coupling causes errors in quantum computers.
  • Decoherence-free subspaces protect quantum information but lack computational implementation.
  • Previous work focused on extending memory times, not computation.

Purpose of the Study:

  • To demonstrate a universal set of quantum gates within a decoherence-free subspace.
  • To realize a controlled-NOT gate for error-free quantum computation.
  • To advance the development of scalable quantum computers resilient to environmental noise.

Main Methods:

  • Encoding quantum information in decoherence-free subspaces using ion qubits.
  • Implementing a universal set of quantum gates acting on these protected qubits.
  • Combining implemented gates to construct a controlled-NOT gate.

Main Results:

  • Successfully realized a universal set of quantum gates on decoherence-free ion qubits.
  • Demonstrated the first controlled-NOT gate operating within a decoherence-free subspace.
  • Showcased a viable pathway for computation in error-protected quantum systems.

Conclusions:

  • Decoherence-free subspaces can support universal quantum computation.
  • The demonstrated gates and CNOT gate are crucial steps towards fault-tolerant quantum computing.
  • This work paves the way for scalable, error-resistant quantum computers.