通过端口分配和编译减轻线性光学器件的缺陷
Mitigating linear optics imperfections via port allocation and compilation
摘要：
线性光学是构建量子技术的一条有前途的路线，这些量子技术可以在室温下运行，并且可以在集成光子平台上可扩展地制造。然而，扩大线性光学器件的规模需要在不可避免的制造缺陷中实现高性能操作。我们提出了提高线性光学干涉仪的性能的技术，通过调整其端口分配和编译的片上缺陷，这可以事先确定合适的校准程序，我们介绍。作为代表性的例子，我们展示了显着减少的平均功率消耗的给定干涉仪或在其功耗值的范围内，在所有可能的酉transformations implementedonit.Further，我们证明了这些技术的有效性，在提高所需的转换中存在的制造缺陷。通过将线性光学干涉仪在相关度量方面的性能提高几个数量级，这些工具使光学技术更接近于展示真正的量子优势。
英文摘要：
Linear optics is a promising route to building quantum technologies that operate at room temperature and can be manufactured scalably on integrated photonic platforms. However, scaling up linear optics requires high-performance operation amid inevitable manufacturing imperfections. We present techniques for enhancing the performance of linear optical interferometers by tailoring their port allocation and compilation to the on-chip imperfections, which can be determined beforehand by suitable calibration procedures that we introduce. As representative examples, we demonstrate dramatic reductions in the average power consumption of a given interferometer or in the range of its power consumption values across all possible unitary transformations implemented on it. Furthermore, we demonstrate the efficacy of these techniques at improving the fidelities of the desired transformations in the presence of fabrication defects. By improving the performance of linear optical interferometers in relevant metrics by several orders of magnitude, these tools bring optical technologies closer to demonstrating true quantum advantage.
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