论文标题
进化算法设计高共处光腔
Evolutionary algorithm to design high-cooperativity optical cavities
论文作者
论文摘要
使用一种进化算法与梯度下降法相结合，我们设计了具有显着提高的腔体光子和单个量子发射极之间强耦合速率的光腔。我们的方法使我们能够找到专门设计的非球形镜子，从而导致腔体中心的高型腔本征型具有较大的田间增强。该方法基于使用梯度下降方法进行优化将连续的扰动添加到初始球形镜面。我们提出适合制造的镜子曲线，比相同大小的任何球形腔显示出更高的腔合作性。最后，我们从数值上演示了这样的空腔如何增强耦合Ca $^+$离子与光纤光子的纯度的操作频率和纯度。
Using an evolutionary algorithm combined with a gradient descent method we design optical cavities with significantly enhanced strong coupling rates between cavity photons and a single quantum emitter. Our approach allows us to find specially designed non-spherical mirrors which lead to high-finesse cavity eigenmodes with large field enhancement at the center of the cavity. The method is based on adding consecutive perturbations to an initial spherical mirror shape using the gradient descent method for optimization. We present mirror profiles suitable for fabrication which demonstrate higher cavity cooperativity than any spherical cavity of the same size. Finally, we demonstrate numerically how such a cavity enhances the operation frequency and purity of coupling a Ca$^+$ ion to an optical fiber photon.
