Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Standing Waves in a Cavity

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

You might also read

Related Articles

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

Sort by

Same author

A millimeter-wave photometric camera for long-range imaging through optical obscurants using kinetic inductance detectors.

The Review of scientific instruments·2025

Same author

Quantum computing requires high-performance software.

Science (New York, N.Y.)·2025

Same author

Erratum: "The Simons Observatory: Cryogenic half wave plate rotation mechanism for the small aperture telescopes" [Rev. Sci. Instrum. 95, 024504 (2024)].

The Review of scientific instruments·2025

Same author

High-threshold and low-overhead fault-tolerant quantum memory.

Nature·2024

Same author

The Simons Observatory: Cryogenic half wave plate rotation mechanism for the small aperture telescopes.

The Review of scientific instruments·2024

Same author

Generic Nonadditivity of Quantum Capacity in Simple Channels.

Physical review letters·2023

Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026

Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026

Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026

Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026

Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026

Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 29, 2026

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Simple all-microwave entangling gate for fixed-frequency superconducting qubits.

Jerry M Chow¹, A D Córcoles, Jay M Gambetta

¹IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, USA.

Physical Review Letters

|September 21, 2011

Summary

This summary is machine-generated.

We developed a simple microwave-controlled two-qubit gate for superconducting qubits. This gate efficiently creates entangled states with high fidelity, advancing quantum computing hardware.

More Related Videos

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

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

Published on: August 2, 2019

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Related Experiment Videos

Last Updated: May 29, 2026

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

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

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

Published on: August 2, 2019

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Area of Science:

Quantum Computing
Superconducting Circuits
Quantum Information Science

Background:

Superconducting qubits are a leading platform for quantum computation.
Implementing high-fidelity two-qubit gates is crucial for scalable quantum computers.
Fixed-frequency qubits offer advantages in coherence but require precise control techniques.

Purpose of the Study:

To demonstrate a novel, all-microwave tunable two-qubit gate for fixed-frequency superconducting qubits.
To characterize the performance of this gate in generating entangled states.
To assess the gate fidelity using quantum process tomography.

Main Methods:

Utilized microwave irradiation amplitude to tune the two-qubit gate.
Operated the gate at the transition frequency of one qubit using irradiation on the other.
Employed quantum process tomography to measure gate fidelity.

Main Results:

Achieved a maximal extracted concurrence of 0.88, indicating strong entanglement.
Quantum process tomography yielded a gate fidelity of 81%.
The gate requires no additional subcircuitry, simplifying the architecture.

Conclusions:

The demonstrated all-microwave gate is a viable and efficient method for entangling fixed-frequency superconducting qubits.
This technique offers a promising path towards scalable quantum computing architectures.
The simplicity and tunability of the gate are significant advantages for practical implementation.