Strong squeezing of microwave output fields via reservoir-engineered cavity magnomechanics

TL;DR

This paper demonstrates how reservoir engineering in a cavity magnomechanical system can produce strong, stationary squeezing of microwave output fields, with potential applications in quantum information and metrology.

Contribution

It introduces a method to generate strong microwave squeezing by reservoir engineering in a cavity magnomechanical system with dual-tone driving.

Findings

Achieves substantial stationary squeezing with current parameters.

Uses two-tone drive to create a squeezed magnonic reservoir.

Demonstrates potential for quantum information applications.

Abstract

We show how to achieve strong squeezing of a microwave output field by reservoir engineering a cavity magnomechanical system, consisting of a microwave cavity, a magnon mode, and a mechanical vibration mode. The magnon mode is simultaneously driven by two microwave fields at the blue and red sidebands associated with the vibration mode. The two-tone drive induces a squeezed magnonic reservoir for the intracavity field, leading to a squeezed cavity mode due to the cavity-magnon state swapping, which further yields a squeezed cavity output field. The squeezing of the output field is stationary and substantial using currently available parameters in cavity magnomechanics. The work indicates the potential of the cavity magnomechanical system in preparing squeezed microwave fields, and may find promising applications in quantum information science and quantum metrology.