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We review the field of cavity optomechanics, which explores the interaction between electromagnetic radiation and nano- or micromechanical motion. This review covers the basics of optical cavities and mechanical resonators, their mutual…

Mesoscale and Nanoscale Physics · Physics 2015-01-05 Markus Aspelmeyer , Tobias J. Kippenberg , Florian Marquardt

We develop a Floquet approach to solve time-periodic quantum Langevin equations in steady state. We show that two-time correlation functions of system operators can be expanded in a Fourier series and that a generalized Wiener-Khinchin…

Mesoscale and Nanoscale Physics · Physics 2016-08-10 Daniel Malz , Andreas Nunnenkamp

We consider an optomechanical cavity that is driven stroboscopically by a train of short pulses. By suitably choosing the inter-pulse spacing we show that ground-state cooling and mechanical squeezing can be achieved, even in the presence…

Quantum Physics · Physics 2020-07-06 Matteo Brunelli , Daniel Malz , Albert Schliesser , Andreas Nunnenkamp

We propose a spectrometric method to detect a classical weak force acting upon the moving end mirror in a cavity optomechanical system. The force changes the equilibrium position of the end mirror, and thus the resonance frequency of the…

Quantum Physics · Physics 2020-09-15 Yue-Hui Zhou , Qing-Shou Tan , Xi-Ming Fang , Jin-Feng Huang , Jie-Qiao Liao

The inherently nonlinear interaction between light and motion in cavity optomechanical systems has experimentally been studied in a linearized description in all except highly driven cases. Here we demonstrate a nanoscale optomechanical…

Quantum Physics · Physics 2017-08-09 Rick Leijssen , Giada La Gala , Lars Freisem , Juha T. Muhonen , Ewold Verhagen

The combination of large per-photon optical force and small motional mass attainable in nanocavity optomechanical systems results in strong dynamical back-action between mechanical motion and the cavity light field. In this work we study…

We determine the theoretical limits to squeezing-enhanced measurement sensitivity of mechanical motion in a cavity optomechanical system. The motion of a mechanical resonator is transduced onto quadrature fluctuations of a cavity optical…

Quantum Physics · Physics 2016-11-30 Hugo Kerdoncuff , Ulrich B. Hoff , Glen I. Harris , Warwick P. Bowen , Ulrik L. Andersen

We study the stationary and nonstationary measurement of a classical force driving a mechanical oscillator coupled to an electromagnetic cavity under two-tone driving. For this purpose, we develop a theoretical framework based on the…

Quantum Physics · Physics 2020-11-26 D. N. Bernal-García , H. Vinck-Posada , M. J. Woolley

In precision force sensing of multi-mechanical mode optomechanical systems, coherent interference can decouple certain degenerate vibrational modes from the cavity field, leading to incomplete information regarding the measured signal. In…

Quantum Physics · Physics 2025-10-10 Ding-hui Xu , Zheng Liu , Chang-shui Yu

Optomechanics is a prime example of light matter interaction, where photons directly couple to phonons, allowing to precisely control and measure the state of a mechanical object. This makes it a very appealing platform for testing…

Cavity optomechanics has served as a platform for studying the interaction between light and micromechanical motion via radiation pressure. Here we observe such phenomena with a graphene mechanical resonator coupled to an electromagnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 X. Song , M. Oksanen , J. Li , P. J. Hakonen , M. A. Sillanpaa

Levitated nanoparticles are being intensively investigated from two different perspectives: as a potential realisation of macroscopic quantum coherence; and as ultra-sensitive sensors of force, down to the zeptoNewton level, with a range of…

Quantum Physics · Physics 2022-08-22 A. Pontin , T. S. Monteiro

We review a scheme for performing a back-action evading measurement of one mechanical quadrature in an optomechanical setup. The experimental application of this scheme has been limited by parametric instabilities caused in general by a…

Quantum Physics · Physics 2013-08-28 Steven K. Steinke , K. C. Schwab , Pierre Meystre

In cavity magnomechanical systems, magnetic excitations couple simultaneously with mechanical vibrations and microwaves, incorporating the tunability of magnetism and the long lifetimes of mechanical modes. Applications of such systems,…

Mesoscale and Nanoscale Physics · Physics 2025-10-13 V. A. S. V. Bittencourt , C. A. Potts , J. P. Davis , A. Metelmann

Exploring gravitational interactions between objects with small masses has become increasingly timely. Concurrently, oscillators with masses ranging between milligrams and grams in cavity optomechanical systems sparked interest for probing…

Quantum Physics · Physics 2025-10-30 Ziqian Tang , Wenlong Li , Huanying Sun , Xiaoxia Cai , Tiefu Li , Yulong Liu

We study the effective stochastic dynamics of a semiclassical probe induced by linear optomechanical interactions with a quantum oscillator. Quantum fluctuations lead to state-dependent non-equilibrium noise, which is exponentially enhanced…

Quantum Physics · Physics 2026-01-08 Pedro V. Paraguassú , Luca Abrahão , Thiago Guerreiro

The generation of large-amplitude coherent states of a massive mechanical resonator, and their quantum-limited detection represent useful tools for quantum sensing and for testing fundamental physics theories. In fact, any weak perturbation…

We realise a simple and robust optomechanical system with a multitude of long-lived ($Q>10^7$) mechanical modes in a phononic-bandgap shielded membrane resonator. An optical mode of a compact Fabry-Perot resonator detects these modes'…

Current research on micro-mechanical resonators strives for quantum-limited detection of the motion of macroscopic objects. Prerequisite to this goal is the observation of measurement backaction consistent with quantum metrology limits.…

Quantum Physics · Physics 2008-04-23 Kater W. Murch , Kevin L. Moore , Subhadeep Gupta , Dan M. Stamper-Kurn

Floquet engineering has been recently recognized as an important tool for manipulating the coherent magnon-photon interaction in cavity electromagnonics systems at microwave frequencies. In spite of the novel hybrid magnonic functionalities…

Mesoscale and Nanoscale Physics · Physics 2025-05-26 Amin Pishehvar , Zixin Yan , Zhaoyou Wang , Yu Jiang , Yizhong Huang , Josep M. Jornet , Liang Jiang , Xufeng Zhang