Polarization–frequency hyperentangled photons: generation, characterization, and manipulation

Hsuan-Hao Lu; Joseph M. Lukens; Karthik V. Myilswamy; Muneer Alshowkan; Brian T. Kirby; Andrew M. Weiner; Nicholas A. Peters

doi:10.1117/12.3021561

7 June 2024 Polarization–frequency hyperentangled photons: generation, characterization, and manipulation

Hsuan-Hao Lu, Joseph M. Lukens, Karthik V. Myilswamy, Muneer Alshowkan, Brian T. Kirby, Andrew M. Weiner, Nicholas A. Peters

Author Affiliations +

Proceedings Volume 13028, Quantum Information Science, Sensing, and Computation XVI; 130280H (2024) https://doi.org/10.1117/12.3021561
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Frequency-bin encoding is massively parallelizable and robust for optical fiber transmission. When coupled with an additional degree of freedom (DoF), the expansion of the Hilbert space allows for deterministic controlled operations between two DoFs within a single photon. Such capabilities, when combined with photonic hyperentanglement, are of great value for quantum communication protocols, including dense coding and single-copy entanglement distillation. In this talk, we present an all-fiber-coupled, ultrabroadband polarization–frequency hyperentangled source and conduct comprehensive quantum state tomography across multiple dense wavelength division multiplexing channels spanning the optical C+L-band (1530–1625 nm). In addition, we design and implement a high-fidelity controlled-NOT (cnot) operation between polarization and frequency DoFs by exploiting electro-optic phase modulation within a fiber Sagnac loop. Collectively, our hyperentangled source and two-qubit gate should unlock new opportunities for harnessing polarization–frequency resources in established telecommunication fiber networks for future quantum applications.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hsuan-Hao Lu, Joseph M. Lukens, Karthik V. Myilswamy, Muneer Alshowkan, Brian T. Kirby, Andrew M. Weiner, and Nicholas A. Peters "Polarization–frequency hyperentangled photons: generation, characterization, and manipulation", Proc. SPIE 13028, Quantum Information Science, Sensing, and Computation XVI, 130280H (7 June 2024); https://doi.org/10.1117/12.3021561

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