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arXiv · 1507.06172

Real-Time Quadrature Measurement of a Single-Photon Wavepacket with Continuous Temporal-Mode-Matching

Hisashi Ogawa·Hideaki Ohdan·Kazunori Miyata·Masahiro Taguchi·Kenzo Makino·Hidehiro Yonezawa·Jun-ichi Yoshikawa·Akira Furusawa
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Abstract

Real-time controls based on quantum measurements are powerful tools for various quantum protocols. However, their experimental realization have been limited by mode-mismatch between temporal mode of quadrature measurement and that heralded by photon detection. Here, we demonstrate real-time quadrature measurement of a single-photon wavepacket induced by a 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.

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Hisashi Ogawa, Hideaki Ohdan, Kazunori Miyata, Masahiro Taguchi, Kenzo Makino, Hidehiro Yonezawa, Jun-ichi Yoshikawa, Akira Furusawa. 2016-03-23. Real-Time Quadrature Measurement of a Single-Photon Wavepacket with Continuous Temporal-Mode-Matching. https://doi.org/10.1103/physrevlett.116.233602

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