里德伯介导的可调带宽微波-光转换
Rydberg-mediated microwave-to-optical transduction with tunable bandwidth
- Freie Universität Berlin（柏林自由大学）
- Eberhard Karls Universität Tübingen（蒂宾根大学）
- The Niels Bohr Institute, University of Copenhagen（哥本哈根大学尼尔斯·玻尔研究所）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
提出一种由集体里德伯激发介导的腔基微波-光转换器，通过外部驱动场原位调谐带宽，在阻抗匹配下实现近单位效率和量子极限噪声。
AI中文摘要：
相干微波-光转换对于混合量子网络至关重要。然而，典型转换器的带宽由固定器件参数决定，并面临效率-带宽权衡。我们提出一种由集体里德伯激发介导的腔基微波-光转换器，其中外部驱动场可在原位将转换带宽从窄带、光谱选择性操作调谐至宽带操作，而无需修改腔参数。在阻抗匹配条件下，该系统作为连续波相位保持线性转换器运行，在整个可调带宽范围内保持近单位效率和量子极限附加噪声。
英文摘要：
Coherent microwave-to-optical transduction is essential for hybrid quantum networks. Typical transducers, however, have bandwidths set by fixed device parameters and face efficiency-bandwidth tradeoffs. We propose a cavity-based microwave-to-optical transducer mediated by a collective Rydberg excitation, where external driving fields tune the conversion bandwidth in situ from narrowband, spectrally selective operation to broadband operation without modifying cavity parameters. Under impedance-matching conditions, the system operates as a continuous-wave phase-preserving linear transducer, maintaining both near-unit efficiency and quantum-limited added noise throughout the tunable bandwidth range.
