论文标题
具有被动光子学和时间解决检测的高维频率编码量子信息处理
High-dimensional Frequency-Encoded Quantum Information Processing with Passive Photonics and Time-Resolving Detection
论文作者
论文摘要
在这封信中，我们提出了一种新方法，以处理在光子频域中编码的高维量子信息。与基于非线性光学过程的先前方法相反，无需对光子能量的积极控制。可以通过被动光子电路和时间溶液检测来实现任意的统一转换和投影测量。给出了具有任意大小的量子频率梳的系统电路设计。验证量子频率相关性的标准已得出。通过考虑探测器有限响应时间的实际条件，我们表明可以通过当前的设备性能轻松实现高保真操作。这项工作将为基于高维频率编码的可扩展和高保真量子信息处理铺平道路。
In this Letter, we propose a new approach to process high-dimensional quantum information encoded in a photon frequency domain. In contrast to previous approaches based on nonlinear optical processes, no active control of photon energy is required. Arbitrary unitary transformation and projection measurement can be realized with passive photonic circuits and time-resolving detection. A systematic circuit design for a quantum frequency comb with arbitrary size has been given. The criteria to verify quantum frequency correlation has been derived. By considering the practical condition of detector's finite response time, we show that high-fidelity operation can be readily realized with current device performance. This work will pave the way towards scalable and high-fidelity quantum information processing based on high-dimensional frequency encoding.
