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<p>An approach has been proposed to directly generate a multidimensional biphoton state that combines the polarization and frequency quantum entanglement of visible and infrared modes in a microstructured fiber. The possibility of controlling polarization states and equalizing the amplitudes of all generated spectral modes without a significant decrease in the generation rate has been shown. The prospects for the use of multidimensional biphoton states in optical quantum processing and quantum communications have been discussed.</p>

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Method for the Direct Generation of Multidimensional Biphoton States with Polarization–Frequency Quantum Entanglement

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月1日

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  • M. A. Smirnov,
  • A. M. Smirnova,
  • O. A. Ermishev,
  • K. S. Melnik,
  • S. A. Moiseev

摘要

An approach has been proposed to directly generate a multidimensional biphoton state that combines the polarization and frequency quantum entanglement of visible and infrared modes in a microstructured fiber. The possibility of controlling polarization states and equalizing the amplitudes of all generated spectral modes without a significant decrease in the generation rate has been shown. The prospects for the use of multidimensional biphoton states in optical quantum processing and quantum communications have been discussed.