Quantum Entanglement Distribution via Uplink Satellite Channels

Significant work has been done to develop quantum satellites, which generate entangled pairs in space and distribute them to ground stations separated some distance away. The reverse uplink case, where pairs are generated on the ground and swapped on the satellite using an optical Bell-measurement,...

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Published in:arXiv.org 2024-09
Main Authors: Srikara, S, Hudson, Leone, Solnstev, Alexander S, Devitt, Simon J
Format: Article
Language:English
Subjects:
Atmospheric effects
Configuration management
Feasibility studies
Numerical analysis
Photonics
Quantum entanglement
Satellite communications
Uplinking
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Hudson, Leone
Solnstev, Alexander S
Devitt, Simon J
description Significant work has been done to develop quantum satellites, which generate entangled pairs in space and distribute them to ground stations separated some distance away. The reverse uplink case, where pairs are generated on the ground and swapped on the satellite using an optical Bell-measurement, has not been seriously considered due to a prevailing assumption that it is practically infeasible. In this letter, we illustrate the feasibility of performing Discrete Variable photonic Bell-measurements in space by conducting a detailed numerical analysis to estimate the channel efficiency and attainable pair fidelity for various satellite-station configurations. Our model accounts for a wide range of physical effects such as atmospheric effects, stray photons, and mode mismatch. Our findings show promise toward the feasibility of photonic Bell-measurements in space, which motivates future research towards large-scale Satellite-based uplink entanglement distribution.
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subjects Atmospheric effects
Configuration management
Feasibility studies
Numerical analysis
Photonics
Quantum entanglement
Satellite communications
Uplinking
title Quantum Entanglement Distribution via Uplink Satellite Channels
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