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arXiv · 2412.17683

On-chip frequency-bin quantum photonics

Karthik V. Myilswamy·Lucas M. Cohen·Suparna Seshadri·Hsuan-Hao Lu·Joseph M. Lukens
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Abstract

Frequency-bin encoding furnishes a compelling pathway for quantum information processing systems compatible with established lightwave infrastructures based on fiber-optic transmission and wavelength-division multiplexing. Yet although significant progress has been realized in proof-of-principle tabletop demonstrations, ranging from arbitrary single-qubit gates to controllable multiphoton interference, challenges in scaling frequency-bin processors to larger systems remain. In this Perspective, we highlight recent advances at the intersection of frequency-bin encoding and integrated photonics that are fundamentally transforming the outlook for scalable frequency-based quantum information. Focusing specifically on results on sources, state manipulation, and hyperentanglement, we envision a possible future in which on-chip frequency-bin circuits fulfill critical roles in quantum information processing, particularly in communications and networking.

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Karthik V. Myilswamy, Lucas M. Cohen, Suparna Seshadri, Hsuan-Hao Lu, Joseph M. Lukens. 2024-12-23. On-chip frequency-bin quantum photonics. https://doi.org/10.1515/nanoph-2024-0585

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