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 de Broglie Wavelength02:32

The de Broglie Wavelength

25.6K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
25.6K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

47.1K
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...
47.1K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.3K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.3K
Oscillations about an Equilibrium Position01:04

Oscillations about an Equilibrium Position

5.7K
Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable equilibrium point will cause the object to oscillate around that point. For an unstable equilibrium point, if the object is disturbed slightly, it will not return to the equilibrium point. There are three conditions for equilibrium points—stable, unstable, and half-stable. A half-stable equilibrium point is also unstable, but is named so...
5.7K
Electric Potential Energy of Two Point Charges01:12

Electric Potential Energy of Two Point Charges

4.8K
The electric potential energy of a test charge in a uniform eclectic field can be generalized to any electric field produced by static charge distribution. Consider a positive test charge in an electric field produced by another static positive charge. If the test charge is moved away from the static charge, then the electric field does the positive work on the test charge, and the electric potential energy of the test charge decreases as it moves away from the static charge. Here the electric...
4.8K
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

2.7K
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
2.7K

You might also read

Related Articles

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

Sort by
Same author

Spectral properties of two superconducting artificial atoms coupled to a resonator in the ultrastrong coupling regime.

Nature communications·2025
Same author

Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator.

Nature communications·2023
Same author

Localizing Fractional Quasiparticles on Graphene Quantum Hall Antidots.

Physical review letters·2020
Same author

Hybrid rf SQUID qubit based on high kinetic inductance.

Scientific reports·2018
Same author

Tuneable on-demand single-photon source in the microwave range.

Nature communications·2016
Same author

Suppression of Dephasing by Qubit Motion in Superconducting Circuits.

Physical review letters·2016
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Same journal

Dementia risk in middle-aged people linked to a blood protein.

Nature·2026
Same journal

Daily briefing: What's really happening with trust in science.

Nature·2026
See all related articles

Related Experiment Video

Updated: Apr 28, 2026

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

13.9K

Quantum oscillations in two coupled charge qubits.

Yu A Pashkin1, T Yamamoto, O Astafiev

  • 1The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan.

Nature
|February 21, 2003
PubMed
Summary
This summary is machine-generated.

Researchers demonstrated coupled Josephson circuits with two charge qubits, a key step for building practical quantum computers. This work shows the feasibility of linking multiple solid-state qubits and hints at entangled two-qubit states.

More Related Videos

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

9.0K
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

10.2K

Related Experiment Videos

Last Updated: Apr 28, 2026

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

13.9K
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

9.0K
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

10.2K

Area of Science:

  • Quantum computing
  • Solid-state physics
  • Superconductivity

Background:

  • Practical quantum computers require coupled quantum systems (qubits).
  • Solid-state qubits, particularly those using Josephson junctions, are promising for integrated quantum devices.
  • Previous research focused on individual qubits, lacking experimental reports of multi-qubit gates.

Purpose of the Study:

  • To demonstrate the coupling of multiple solid-state qubits.
  • To experimentally realize a Josephson circuit with two coupled charge qubits.
  • To investigate the interaction and entanglement between solid-state qubits.

Main Methods:

  • Fabrication of a Josephson circuit with two coupled charge qubits.
  • Application of a pulse technique to coherently mix quantum states.
  • Observation and analysis of quantum oscillations to study qubit interactions.

Main Results:

  • Successful demonstration of a Josephson circuit with two coupled charge qubits.
  • Observation of quantum oscillations, indicating coherent interaction between the qubits.
  • Evidence for the feasibility of coupling multiple solid-state qubits.

Conclusions:

  • The experimental coupling of two solid-state qubits is feasible.
  • The results suggest the potential for creating entangled two-qubit states.
  • This work represents a significant step towards building multi-qubit quantum processors.