论文标题
来自域工程下转换的频率键纠缠
Frequency-bin entanglement from domain-engineered down-conversion
论文作者
论文摘要
与其他光子自由度相比，由于更大的希尔伯特空间，频率编码迅速成为量子信息方案的有吸引力的前景，并提高了噪声的弹性。要充分利用频率编码作为QIP的实用范式，需要有效而简单的频率纠缠来源。在这里，我们提出一个不使用过滤或谐振腔的离散频率键纠缠的单通源。我们使用域工程的非线性晶体来在电信波长下生成八模式频率键合源。我们的方法利用了与散装晶体源相关的高程度的高效和简单性。
Frequency encoding is quickly becoming an attractive prospect for quantum information protocols owing to larger Hilbert spaces and increased resilience to noise compared to other photonic degrees of freedom. To fully make use of frequency encoding as a practical paradigm for QIP, an efficient and simple source of frequency entanglement is required. Here we present a single-pass source of discrete frequency-bin entanglement which does not use filtering or a resonant cavity. We use a domain-engineered nonlinear crystal to generate an eight-mode frequency-bin entangled source at telecommunication wavelengths. Our approach leverages the high heralding efficient and simplicity associated with bulk crystal sources.
