论文标题
使用方向无偏线性光学器件的干涉仪和高维相测量
Interferometry and higher-dimensional phase measurements using directionally unbiased linear optics
论文作者
论文摘要
Grover乘数是对梁拆分器的较高维度的概括，其中四个端口中的任何一个的输入都具有在包括输入端口在内的相同四个端口中的任何一个中退出的概率相等的概率。在本文中，我们证明了由此类倍数构建的干涉仪具有新的特征。例如，当与两光子输入和巧合测量结合使用时，表明此类干涉仪具有超出标准梁基于基于梁的干涉仪的功能，例如易于控制的Hong-ou-Mandel（HOM）和反霍姆行为之间的插值。此外，可以表明，基于Grover的Mach-Zhhnder干涉仪的类似物可以同时进行三个单独的相测量。通过将两个乘数之间的传输线排列在不同的平面中，相同的干涉仪充当高维的SAGNAC干涉仪，从而使旋转速率约为三个不同的轴，可以用单个设备测量。
Grover multiports are higher-dimensional generalizations of beam splitters, in which input to any one of the four ports has equal probability of exiting at any of the same four ports, including the input port. In this paper, we demonstrate that interferometers built from such multiports have novel features. For example, when combined with two-photon input and coincidence measurements, it is shown that such interferometers have capabilities beyond those of standard beam-splitter-based interferometers, such as easily controlled interpolation between Hong-Ou-Mandel (HOM) and anti-HOM behavior. Further, it is shown that the Grover-based analog of the Mach-Zehnder interferometer can make three separate phase measurements simultaneously. By arranging the transmission lines between the two multiports to lie in different planes, the same interferometer acts as a higher-dimensional Sagnac interferometer, allowing rotation rates about three different axes to be measured with a single device.
