Oral: Vacuum Beam Guide Paves the Way for Ultra-high Bandwidth Global Quantum Networks
ORAL
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.
*ARO (No. W911NF-231-0077), ARO MURI (No. W911NF-21-1-0325), AFOSR MURI (No. FA9550-19-1-0399, No. FA9550-21-1-0209, No. FA9550-23-1-0338), NSF (No. PHY-0823459, No. PHY-1764464, No. ECCS-1941826, No. OMA1936118, No. ERC-1941583, No. OMA-2137642, No. OSI-2326767, No. CCF-2312755), NTT Research, Packard Foundation (No. 2020-71479), and the Marshall and Arlene Bennett Family Research Program.
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Presenters
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YUEXUN HUANG
- The University of Chicago