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Related Experiment Video

Updated: Jul 9, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

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Published on: August 5, 2013

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

Z H Peng^1,2, S E de Graaf³, J S Tsai^2,4

¹Physics Department, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK.

Nature Communications

|August 23, 2016

Summary

This summary is machine-generated.

We developed a tunable, on-demand microwave photon source using a superconducting artificial atom. This single-photon source operates with high efficiency and shows potential for quantum technologies.

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Area of Science:

Quantum optics and photonics
Superconducting quantum circuits
Quantum information science

Background:

On-demand single-photon sources are crucial for advancing quantum technologies.
Superconducting artificial atoms offer a promising platform for quantum device development.

Purpose of the Study:

To demonstrate a tunable, on-demand microwave photon source.
To characterize the efficiency and performance of the superconducting artificial atom-based source.

Main Methods:

Utilized a superconducting artificial atom strongly coupled to an open-ended transmission line.
Employed microwave π-pulse excitation via a control line for photon emission.
Tuned the emission frequency using an external magnetic field and confirmed single-photon generation via second-order correlation function measurements.

Main Results:

Demonstrated a tunable microwave photon source operating from 7.75 to 10.5 GHz.
Estimated intrinsic device efficiency between 65-80%, with experimental efficiency affected by ~90% excited state preparation.
Confirmed single-photon generation through observed photon anti-bunching.

Conclusions:

The developed superconducting artificial atom-based source provides tunable, on-demand single microwave photons.
This technology holds significant potential for applications in quantum communication, quantum information processing, and sensing.