Hai He, Peng-Fei Yang, Peng-Fei Zhang, Gang Li, Tian-Cai Zhang
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引用次数: 0
Abstract
A single-photon source with narrow bandwidth, high purity, and large brightness can efficiently interact with material qubits strongly coupled to an optical microcavity for quantum information processing. Here, we experimentally demonstrate a degenerate doubly resonant single-photon source at 852 nm by the cavity-enhanced spontaneous parametric down-conversion process with a 100% duty cycle of generation. The single photon source possesses both high purity with a second-order correlation g(2)h (0) = 0.021 and narrow linewidth with Δνsp = (800 ± 13) kHz. The single-photon source is compatible with the cesium atom D2 line and can be used for cesium-based quantum information processing.
期刊介绍：
Frontiers of Physics is an international peer-reviewed journal dedicated to showcasing the latest advancements and significant progress in various research areas within the field of physics. The journal's scope is broad, covering a range of topics that include:
Quantum computation and quantum information
Atomic, molecular, and optical physics
Condensed matter physics, material sciences, and interdisciplinary research
Particle, nuclear physics, astrophysics, and cosmology
The journal's mission is to highlight frontier achievements, hot topics, and cross-disciplinary points in physics, facilitating communication and idea exchange among physicists both in China and internationally. It serves as a platform for researchers to share their findings and insights, fostering collaboration and innovation across different areas of physics.
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