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Vacuum Beam Guide for Large Scale Quantum Networks. | LitMetric

Vacuum Beam Guide for Large Scale Quantum Networks.

Phys Rev Lett

Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA.

Published: July 2024

AI Article Synopsis

Article Abstract

The vacuum beam guide (VBG) presents a completely different solution for quantum channels to overcome the limitations of existing fiber and satellite technologies for long-distance quantum communication. With an array of aligned lenses spaced kilometers apart, the VBG offers ultrahigh transparency over a wide range of optical wavelengths. With realistic parameters, the VBG can outperform the best fiber by 3 orders of magnitude in terms of attenuation rate. Consequently, the VBG can enable long-range quantum communication over thousands of kilometers with quantum channel capacity beyond 10^{13}  qubit/sec, orders of magnitude higher than the state-of-the-art quantum satellite communication rate. Remarkably, without relying on quantum repeaters, the VBG can provide a ground-based, low-loss, high-bandwidth quantum channel that enables novel distributed quantum information applications for computing, communication, and sensing.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevLett.133.020801DOI Listing

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