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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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On-chip frequency-bin quantum photonics.

Karthik V Myilswamy1,2, Lucas M Cohen1,3, Suparna Seshadri1,4

  • 1School of Electrical and Computer Engineering and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN 47907, USA.

Nanophotonics (Berlin, Germany)
|June 5, 2025
PubMed
Summary
This summary is machine-generated.

Frequency-bin encoding offers a path for quantum information processing using fiber optics. Integrated photonics advances are paving the way for scalable frequency-bin quantum systems in communications.

Keywords:
electro-optic modulatorsfrequency binsmicroring resonatorsphotonic entanglementquantum communications and networkingquantum information processing

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Area of Science:

  • Quantum Information Science
  • Integrated Photonics
  • Quantum Communications

Background:

  • Frequency-bin encoding is compatible with existing fiber-optic infrastructure.
  • Tabletop demonstrations show promise, but scaling frequency-bin processors remains a challenge.

Purpose of the Study:

  • To highlight advances in frequency-bin encoding and integrated photonics.
  • To explore the potential for scalable frequency-based quantum information processing.

Main Methods:

  • Focus on advancements in sources for frequency-bin encoding.
  • Review techniques for state manipulation in frequency-bin systems.
  • Examine progress in hyperentanglement for quantum applications.

Main Results:

  • Integrated photonics is transforming the scalability of frequency-bin quantum information.
  • Progress in sources, state manipulation, and hyperentanglement is evident.
  • On-chip frequency-bin circuits show potential for quantum communications and networking.

Conclusions:

  • Integrated photonics is key to overcoming scaling challenges in frequency-bin quantum processors.
  • Future quantum information processing, especially in communications, may rely on on-chip frequency-bin circuits.