ABSTRACT We propose a scheme for the simultaneous generation of the strong squeezing breaking the 3dB limit for both mechanical and low‐frequency LC resonators in an electro–optomechanical system, in which the optical cavity is subjected to two‐tone driving. By applying red‐ and blue‐detuned driving fields simultaneously, the Bogoliubov modes of two coupled low‐frequency resonators can be cooled to their quantum ground state. This ground‐state cooling enables the generation of strong quantum squeezing. Moreover, the proposed scheme is highly robust against elevated environmental temperatures. This holds significant importance for quantum information processing and quantum precision measurement, especially the study of quantum properties at a more macroscopic level.
Zeng et al. (Wed,) studied this question.