Approximating large scale arbitrary unitaries with integrated multimode interferometers
Approximating large scale arbitrary unitaries with integrated multimode interferometers
复制标题
DOI：
10.1117/12.2523581
复制
发表时间：
2019-05
期刊：
影响因子：
--
通讯作者：
Matthew van Niekerk;J. Steidle;Gregory A. Howland;M. Fanto;Nicholas Soures;F. Zohora;D. Kudithipudi;S. Preble
中科院分区：
文献类型：
--
作者：
Matthew van Niekerk;J. Steidle;Gregory A. Howland;M. Fanto;Nicholas Soures;F. Zohora;D. Kudithipudi;S. Preble
使用线性光学的幺正运算在量子和神经形态空间中有许多应用。在硅光子学中，使用简单分束器和移相器网络已被证明足以实现大规模任意幺正。虽然该技术在高保真度方面取得了成功，但网格的物理缩放上限为 O(n2)。因此，我们建议通过使用多模干扰 (MMI) 设备来显着减少占地面积。在本文中，我们研究了这些 MMI 的主动控制及其对近似传统使用的单一电路的适用性。
Unitary operations using linear optics have many applications within the quantum and neuromorphic space. In silicon photonics, using networks of simple beam splitters and phase shifters have proven sufficient to realize large-scale arbitrary unitaries. While this technique has shown success with high fidelity, the grid physically scales with an upper bound of O(n2). Consequently, we propose to considerably reduce the footprint by using multimode interference (MMI) devices. In this paper, we investigate the active control of these MMIs and their suitability for approximating traditionally used unitary circuits.