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The so-called Quantum Information Networks (QIN) promise to revolutionize the world with new applications based on the interconnection of quantum devices such as quantum computers, quantum sensors and physically secured cryptographic receivers. Such networks employ photons as a propagation mean of quantum information in order to create entanglement between the end-users’ devices. Over long distances, satellites will become mandatory in the network as they offer a better optical losses scaling than fibres. In this paper, we focus on the physical principle at the heart of the two-photon Bell-State Measurement devices used in the QIN to swap entanglement between and inside the network nodes: the Hong-Ou-Mandel effect.

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On the Road to Satellite-Based Quantum Information Networks: Hong-Ou-Mandel Effect with Pulsed Coherent States

  • 会议论文

  • 发表日期：

    2026年

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  • Mathieu Bertrand,
  • Luca Paccard,
  • Pedro Roldan Gomez,
  • Laurent de Forges de Parny,
  • Michel Sotom,
  • Etienne Samain,
  • Olivier Alibart,
  • Matteo Schiavon,
  • Sacha Gressani,
  • Erik Kerstel,
  • Thierry Lanz,
  • Eleni Diamanti,
  • Sébastien Tanzilli,
  • Mathias van den Bossche

摘要

The so-called Quantum Information Networks (QIN) promise to revolutionize the world with new applications based on the interconnection of quantum devices such as quantum computers, quantum sensors and physically secured cryptographic receivers. Such networks employ photons as a propagation mean of quantum information in order to create entanglement between the end-users’ devices. Over long distances, satellites will become mandatory in the network as they offer a better optical losses scaling than fibres. In this paper, we focus on the physical principle at the heart of the two-photon Bell-State Measurement devices used in the QIN to swap entanglement between and inside the network nodes: the Hong-Ou-Mandel effect.