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Related Experiment Video

Updated: Jul 29, 2025

How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters

How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters

Published on: April 16, 2015

Squeezing microwaves by magnetostriction.

Jie Li¹, Yi-Pu Wang¹, Jian-Qiang You¹

¹Interdisciplinary Center of Quantum Information, Zhejiang Province Key Laboratory of Quantum Technology and Device, and State Key Laboratory of Modern Optical Instrumentation, School of Physics, Zhejiang University, Hangzhou 310027, China.

National Science Review

|May 25, 2023

Summary

This summary is machine-generated.

Researchers demonstrate a new method to reduce quantum noise using magnetostrictive interactions in cavity magnomechanics. This technique offers a practical way to generate squeezed light for quantum information and metrology applications.

Keywords:

cavity magnonics magnomechanics squeezing of quantum noise

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Last Updated: Jul 29, 2025

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Area of Science:

Quantum physics
Quantum information science
Quantum metrology

Background:

Squeezed light is crucial for quantum information science and quantum metrology.
Existing methods for producing squeezed light often rely on optical non-linear processes.

Purpose of the Study:

To investigate the use of non-linear magnetostrictive interactions in cavity magnomechanics for quantum noise reduction.
To achieve substantial and stationary squeezing of microwave fields.

Main Methods:

Utilizing a non-linear magnetostrictive interaction within a ferrimagnetic material placed in a cavity.
Exploring cavity magnomechanics to couple microwave photons with magnons.
Identifying optimal parameter regimes for achieving field squeezing.

Main Results:

Demonstrated the ability to reduce quantum noise of electromagnetic fields.
Achieved substantial and stationary squeezing of the microwave output field.
Identified optimal parameter regimes for this effect.

Conclusions:

The proposed scheme is feasible with current cavity electromagnonic and magnomechanics technology.
This work presents a novel and practical approach for generating squeezed vacuum states.
The findings hold promise for advancements in quantum information processing and quantum metrology.