Opt Lett. 2018 Jul 15;43(14):3313-3316. doi: 10.1364/OL.43.003313.
We use shortcuts to adiabaticity, a method introduced to speed up adiabatic quantum dynamics, for the efficient generation of entanglement between exciton-polaritons in coupled semiconductor microcavities. A substantial improvement is achieved, compared to a recently proposed method that essentially enhances the nonlinearity of the system. Our method takes advantage of a time-dependent nonlinearity, which can become larger than the Josephson coupling between the cavities, while the conventional method is restricted to a constant nonlinearity lower than the coupling. The suggested procedure is expected to also find application in other research areas in optics, where nonlinear interacting bosons are encountered.
我们使用绝热捷径（adiabaticity）来高效地产生耦合半导体微腔中的激子极化激元之间的纠缠，这种方法是为了加速绝热量子动力学而引入的。与最近提出的主要增强系统非线性的方法相比，我们的方法取得了显著的改进。我们的方法利用了随时间变化的非线性，这种非线性可以变得比腔之间的约瑟夫森耦合更大，而传统方法则限于低于耦合的常数非线性。该建议的过程预计也将在光学等其他研究领域中得到应用，在这些领域中会遇到非线性相互作用的玻色子。
