Real-Time Quadrature Measurement of a Single-Photon Wave Packet with Continuous Temporal-Mode Matching.
Real-Time Quadrature Measurement of a Single-Photon Wave Packet with Continuous Temporal-Mode Matching.
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DOI：
10.1103/physrevlett.116.233602
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发表时间：
2015-07
影响因子：
8.6
通讯作者：
H. Ogawa;Hideaki Ohdan;Kazunori Miyata;M. Taguchi;Kenzo Makino;H. Yonezawa;J. Yoshikawa;A. Furusawa
中科院分区：
文献类型：
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作者：
H. Ogawa;Hideaki Ohdan;Kazunori Miyata;M. Taguchi;Kenzo Makino;H. Yonezawa;J. Yoshikawa;A. Furusawa
基于量子测量的实时控制是各种量子协议的强大工具。然而，他们的实验实现受到正交测量的时间模式与光子检测所预示的时间模式之间的模式不匹配的限制。在这里，我们通过利用零差检测和指数上升时间模式之间的连续时间模式匹配，演示了由光子检测引起的单光子波包的实时正交测量。指数上升模式的单光子也有望成为与其他量子系统相互作用的有用资源。
Real-time controls based on quantum measurements are powerful tools for various quantum protocols. However, their experimental realization has been limited by mode mismatch between the temporal mode of quadrature measurement and that heralded by photon detection. Here, we demonstrate real-time quadrature measurement of a single-photon wave packet induced by photon detection by utilizing continuous temporal-mode matching between homodyne detection and an exponentially rising temporal mode. Single photons in exponentially rising modes are also expected to be useful resources for interactions with other quantum systems.