Large amplitude mechanical coherent states and detection of weak nonlinearities in cavity optomechanics
Year: 2025
Authors: Li W.L., Piergentili P., Marzioni F., Bonaldi M., Borrielli A., Serra E., Marin F., Marino F., Malossi N., Natali R., Di Giuseppe G., Vitali D.
Autors Affiliation: Univ Camerino, Sch Sci & Technol, Phys Div, I-62032 Camerino, MC, Italy; Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China; INFN, Sez Perugia, I-06123 Perugia, Italy; Inst Mat Elect & Magnetism, Nanosci Trento FBK Div, I-38123 Trento, Italy; Ist Nazl Fis Nucleare INFN, Trento Inst Fundamental Phys & Applicat, I-38123 Trento, Italy; INFN, Sez Firenze, I-50125 Florence, Italy; INO, CNR, Lgo Enr Fermi 6, I-50125 Florence, Italy; Univ Firenze, Dipartimento Fis & Astron, Via Sansone 1, I-50019 Sesto Fiorentino, FI, Italy; European Lab Nonlinear Spect LENS, Via Carrara 1, I-50019 Sesto Fiorentino, FI, Italy.
Abstract: 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 may affect the coherent quantum evolution of the prepared state, providing a sensitive probe for such a perturbation. Here we consider a cavity optomechanical setup and the case of the detection of a weak mechanical nonlinearity. We consider different strategies, first focusing on the stationary dynamics in the presence of multiple tones driving the system, and then focusing on non-equilibrium dynamical strategies. These methods can be successfully applied for measuring Duffing-like material nonlinearities, or effective nonlinear corrections associated with quantum gravity theories.
Journal/Review: QUANTUM SCIENCE AND TECHNOLOGY
Volume: 10 (3) Pages from: 35055-1 to: 35055-22
More Information: We acknowledge financial support from NQSTI within PNRR MUR Project PE0000023-NQSTI.KeyWords: cavity optomechanics; weak nonlinearity; quantum gravityDOI: 10.1088/2058-9565/ade8a0
