Presentation
13 March 2024 Precision synchronization over large Doppler ranges for satellite-based free-space quantum networking
Neal W. Spellmeyer, Catherine Lee, Marvin Scheinbart, Scott A. Hamilton
Author Affiliations +
Abstract
Precision synchronization is vital for long-distance quantum networking in which entanglement swapping between separate sources via an optical Bell state measurement requires temporal overlap of arriving photonic qubits. This challenge is particularly distinct in satellite-based entanglement distribution in which relative motion, channel effects, and propagation delay must be addressed. This work presents recent progress in achieving precision synchronization in a quantum networking testbed configured for a dual-uplink architecture in which photons from sources at two ground locations would interact at Bell-state measurement on a satellite. Results demonstrate sub-ps synchronization in cases of large Doppler arising from satellite motion.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Neal W. Spellmeyer, Catherine Lee, Marvin Scheinbart, and Scott A. Hamilton "Precision synchronization over large Doppler ranges for satellite-based free-space quantum networking", Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC1291109 (13 March 2024); https://doi.org/10.1117/12.3000342
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KEYWORDS
Quantum entanglement

Doppler effect

Satellites

Quantum networks

Free space optics

Photons

Quantum channels

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