光子
量子信息科学
光子学
量子密钥分配
物理
量子成像
量子传感器
量子网络
量子技术
量子
光电子学
量子计算机
光学
开放量子系统
量子力学
量子纠缠
作者
Najme Ahmadi,S. Schwertfeger,Philipp Werner,Lukas Wiese,Joseph L. Lester,Elisa Da Ros,Josefine Krause,Sebastian Ritter,Mostafa Abasifard,Chanaprom Cholsuk,Ria G. Krämer,Simone Atzeni,Mustafa Gündoğan,Subash Sachidananda,D. Pardo,Stefan Nolte,Alexander Lohrmann,Alexander Ling,Julian Bartholomäus,Giacomo Corrielli,Markus Krutzik,Tobias Vogl
标识
DOI:10.1002/qute.202300343
摘要
Abstract Modern quantum technologies have matured such that they can now be used in space applications, e.g., long‐distance quantum communication. Here, the design of a compact true single photon source is presented that can enhance the secure data rates in satellite‐based quantum key distribution scenarios compared to conventional laser‐based light sources. The quantum light source is a fluorescent color center in hexagonal boron nitride. The emitter is off‐resonantly excited by a diode laser and directly coupled to an integrated photonic processor that routes the photons to different experiments performed directly on‐chip: i) the characterization of the single photon source and ii) testing a fundamental postulate of quantum mechanics, namely the relation of the probability density and the wave function (known as Born's rule). The described payload is currently being integrated into a 3U CubeSat and scheduled to launch in 2024 into low Earth orbit. Therefore the feasibility of true single photon sources and reconfigurable photonic circuits in space can be evaluated. This provides a promising route toward a high‐speed quantum network.
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