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Related Experiment Video

Updated: May 13, 2026

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

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

Published on: May 30, 2014

Self-stabilized quantum optical Fredkin gate.

Jonathan Hu¹, Yu-Ping Huang, Prem Kumar

¹Baylor University, One Bear Place No. 97356, Waco, Texas 76798, USA. jonathan_hu@baylor.edu

|March 5, 2013

Summary

This summary is machine-generated.

Researchers overcame pump-wave fluctuations in quantum optical Fredkin gates using stimulated Raman scattering. This fiber-based method enables stable, high-contrast switching for practical quantum communications.

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Area of Science:

Quantum optics
Quantum information science
Fiber optics

Background:

Quantum optical Fredkin gates are crucial for networkable quantum applications.
Practical implementations are hindered by quantum fluctuations in pump waves.

Purpose of the Study:

To demonstrate a method for overcoming pump-wave fluctuations in quantum optical Fredkin gates.
To enhance the performance of fiber-based quantum communication devices.

Main Methods:

Exploiting stimulated Raman scattering in fiber-based implementations.
Utilizing a Sagnac fiber-loop switch as a specific example.

Main Results:

High switching contrast is maintained despite significant pump fluctuations.
The method demonstrates self-stabilization capabilities.

Conclusions:

Stimulated Raman scattering offers a viable solution to pump-wave fluctuations in quantum optical Fredkin gates.
Fiber-based Sagnac loop switches show potential for practical quantum communications due to self-stabilization, high speed, and low loss.