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Vacuum Beam Guide for Large Scale Quantum Networks.
- Source :
-
Physical review letters [Phys Rev Lett] 2024 Jul 12; Vol. 133 (2), pp. 020801. - Publication Year :
- 2024
-
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.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 133
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 39073959
- Full Text :
- https://doi.org/10.1103/PhysRevLett.133.020801