4.7 Article

High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time

期刊

NPJ QUANTUM INFORMATION
卷 8, 期 1, 页码 -

出版社

NATURE PORTFOLIO
DOI: 10.1038/s41534-022-00664-7

关键词

-

资金

  1. U.S. Department of Energy, Office of Science, Office of High Energy Physics [DE-AC02-07CH11359]
  2. Fermilab's Laboratory Directed Research and Development (LDRD) program
  3. U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Superconducting Quantum Materials and Systems Center (SQMS) [DE-AC02-07CH11359]

向作者/读者索取更多资源

Frequency conversion between microwave and optical photons enables links between superconducting quantum processors and distributed quantum networks. We propose a platform for microwave-optical transduction based on superconducting radio-frequency (SRF) cavities coupled to electro-optic optical cavities to increase conversion efficiency.
Frequency conversion between microwave and optical photons is a key enabling technology to create links between superconducting quantum processors and to realize distributed quantum networks. We propose a microwave-optical transduction platform based on long-coherence time superconducting radio-frequency (SRF) cavities coupled to electro-optic optical cavities to mitigate the loss mechanisms that limit the attainment of high conversion efficiency. We optimize the microwave-optical field overlap and optical coupling losses in the design while achieving long microwave and optical photon lifetime at milli-Kelvin temperatures. This represents a significant enhancement of the transduction efficiency up to 50% under incoming pump power of 140 mu W, which allows the conversion of few-photon quantum signals. Furthermore, this scheme exhibits high resolution for optically reading out the dispersive shift induced by a superconducting transmon qubit coupled to the SRF cavity. We also show that low microwave losses enhance the fidelity of heralded entanglement generation between two remote quantum systems. Finally, high precision in quantum sensing can be reached below the standard quantum limit.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据