Xiong Biao, Li Xun, Chao Shi-Lei, Yang Zhen, Zhang Wen-Zhao, Zhou Ling
Opt Express. 2019 Apr 29;27(9):13547-13558. doi: 10.1364/OE.27.013547.
We propose a scheme to generate the macroscopic entangled Schrödinger cat state of two mechanical resonators in a hybrid optomechanical system by introducing modulated photon-hopping interaction between two cavities. We show that the obtained entangled cat state possesses large average phonon number and the two base vectors of which are nearly orthogonal, thus causing the high degree of entanglement. To justify the robust of the scheme, the dissipation of the system and the noise from the environment are considered. It shows that the high fidelity between the obtained state and the target state can be achieved in the presence of dissipation and thermal noise within our parameter regions, which suggests that our state-generation proposal is feasible.
我们提出了一种方案，通过在两个腔之间引入调制光子跳跃相互作用，在混合光机械系统中生成两个机械谐振器的宏观纠缠薛定谔猫态。我们表明，所获得的纠缠猫态具有较大的平均声子数，并且其两个基矢几乎正交，从而导致高度的纠缠。为了证明该方案的稳健性，考虑了系统的耗散和来自环境的噪声。结果表明，在我们的参数区域内存在耗散和热噪声的情况下，可以实现所获得的状态与目标状态之间的高保真度，这表明我们的态生成方案是可行的。
