Generalized ultrastrong optomechanical-like coupling
Generalized ultrastrong optomechanical-like coupling
复制标题
广义超强类光机耦合
DOI：
10.1103/physreva.101.063802
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Sun Chang-Pu
中科院分区：
文献类型：
--
作者：
Liao Jie-Qiao;Huang Jin-Feng;Tian Lin;Kuang Le-Man;Sun Chang-Pu
我们提出了一个可靠的方案来实现一个广义的超强光机耦合的双模交叉克尔型耦合系统，其中的玻色子模式是强驱动。有效的光机相互作用的形式是一种模式的光子数算子和另一种模式的正交算子的乘积。耦合强度和正交相位都可以通过驱动场来调节。耦合强度可以被大大增强，达到超强耦合制度，在那里的少光子光学力学效应，如光子封锁和宏观上不同的量子叠加变得容易。可调正交相位的存在也使得能够实现几何量子操作。数值模拟表明，该方法在较宽的参数空间内都能很好地工作。我们还提出了这个计划的实验实施的分析。
We propose a reliable scheme to realize a generalized ultrastrong optomechanical coupling in a two-mode cross-Kerr-type coupled system, where one of the bosonic modes is strongly driven. The effective optomechanical interaction takes the form of a product of the photon number operator of one mode and the quadrature operator of the other mode. The coupling strength and quadrature phase are both tunable via the driving field. The coupling strength can be strongly enhanced to reach the ultrastrong-coupling regime, where the few-photon optomechanical effects such as photon blockade and macroscopically distinct quantum superposition become accessible. The presence of tunable quadrature phase also enables the implementation of geometric quantum operations. Numerical simulations show that this method works well in a wide parameter space. We also present an analysis of the experimental implementation of this scheme.