Work

Robust mechanical squeezing via interference-enabled Floquet engineering in optomechanical resonators

Year: 2026

Type: article

Abstract: We propose an interference-assisted scheme to generate mechanical squeezing in the asymptotic Floquet steady state of an optomechanical resonator by combining coherent backscattering suppression with a periodically modulated drive. An auxiliary nanoparticle is introduced to engineer a tunable scattering pathway that destructively interferes with backscattering induced by intrinsic defects, thereby suppressing clockwise–counterclockwise mode mixing and restoring a traveling-wave-dominated intracavity field. Using a Floquet description of the periodic steady state, we show that modulation enhances squeezing primarily through the buildup of phase-sensitive anomalous correlations rather than improved cooling alone. We further develop a compact harmonic characterization of the periodic anomalous correlator, providing a frequency-domain diagnostic of the dominant Floquet harmonic component that carries the squeezing-related correlations. Finally, we demonstrate robustness against finite angular misalignment and thermal noise, underscoring interference-assisted mode control as a practical route to macroscopic continuous-variable quantum resources in optomechanical platforms.

Source: EPJ Quantum Technology

DOI: 10.1140/epjqt/s40507-026-00559-y

Authors: Yu-Mu Liu, Qiu-Yun Yang, Ming-Lei Guo, Liang Wang, Hong-Fu Wang

Institutions: Anhui Science and Technology University, Yanbian University, Jilin Engineering Normal University

Language: English

Topic: Mechanical and Optical Resonators

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,190

Funders: Natural Science Foundation of Jilin Province, National Natural Science Foundation of China