期刊
OPTICA
卷 7, 期 7, 页码 813-819出版社
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.391485
关键词
-
类别
资金
- United States Army Research Laboratory Center for Distributed Quantum Information
- Army Research Laboratory
- National Science Foundation Physics Frontier Center [PHY1430094]
- Air Force Office of Scientific Research
- Army Research Office Multidisciplinary University Research Initiative
- Department of Energy Advanced Scientific Computing Research QuantumTestbed Pathfinder [DE-SC0019040]
- U.S. Department of Energy (DOE) [DE-SC0019040] Funding Source: U.S. Department of Energy (DOE)
Single photons coupled to atomic systems have shown to be a promising platform for developing quantum technologies. Yet a bright on-demand, highly pure, and highly indistinguishable single-photon source compatible with atomic platforms is lacking. In this work, we demonstrate such a source based on a strongly interacting Rydberg system. The large optical nonlinearities in a blockaded Rydberg ensemble convert coherent light into a single collective excitation that can be coherently retrieved as a quantum field. We simultaneously observe a fully single-mode (spectral, temporal, spatial, and polarization) efficiency up to 0.098(2), a detector-background-subtracted g((2))+5.0(1.6) x 10(-4), and indistinguishability of 0.980(7), at an average photon production rate of 1.18(2) x 10(4) s(-1), All of these make this system promising for scalable quantum information applications. Furthermore, we investigate the effects of contaminant Rydberg excitations on the source efficiency and observed single-mode efficiencies up to 0.18(2) for lower photon rates. Finally, recognizing that many quantum information protocols require a single photon in a fully single mode, we introduce metrics that take into account all degrees of freedom to benchmark the performance of on-demand sources. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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。
推荐
暂无数据