Yu-Hong Liu

Aug 22, 2024 | link.aps.org | Yu-Hong Liu |Hunan Normal |Jie-Qiao Liao

The preparation of mechanical quadrature-squeezed states holds significant importance in cavity optomechanics because the squeezed states have extensive applications in understanding fundamental quantum mechanics and exploiting modern quantum technology. Here, we propose a reliable scheme for generating mechanical quadrature squeezing in a typical cavity optomechanical system via seeking optimal cavity-field driving pulses using the gradient-descent algorithm.

May 17, 2024 | link.aps.org | Yi Xu |Hunan Normal |Yu-Hong Liu |Cheng Liu

Simultaneous ground-state cooling of two levitated nanoparticles is a crucial prerequisite for investigation of macroscopic quantum effects such as quantum entanglement and quantum correlation involving translational motion of particles. Here we consider a coupled cavity-levitated-particle system and present a detailed derivation of its Hamiltonian.