论文标题
量子增强干涉仪的敏感性
Sensitivity of quantum-enhanced interferometers
论文作者
论文摘要
我们考虑了线性（SU（2））和非线性（SU（1,1））以及混合SU（2）/SU（1,1）方案的量子增强干涉仪的各种配置。使用统一的模块化方法，基于量子cramer-rao结合，我们表明，在所有实际情况下，它们的灵敏度受相同方程（95）或（97）的限制，这些方程式（97）或（97）首先出现在C.Caves [phys.rev.rev.d 23，1693（1981）]中。
We consider various configuration of quantum-enhanced interferometers, both linear (SU(2)) and non-linear (SU(1,1)) ones, as well as hybrid SU(2)/SU(1,1) schemes. Using the unified modular approach, based on the Quantum Cramer-Rao bound, we show that in all practical cases, their sensitivity is limited by the same equations (95) or (97) which first appeared in the pioneering work by C.Caves [Phys.Rev.D 23, 1693 (1981)].
