Science Cell with Twitter in which objective lenses are formed. Credit: Kovi Lab.
Systems containing quantum networks, connected quantum computers, quantum sensors or other quantum devices, have the ability to activate fast and safe communication. The establishment of these networks depends on a quantum phenomenon known as confusion, which includes a link between particles or systems, which affects the other with quantum quality of each other until they are far away.
The atom -based cobbits used to set up quantum networks work on visible or ultra -violet wavelengths, which is not ideal for signal delivery at long distances through optical fibers. Converting these signals to telecom band wavelengths, however, can reduce communication efficiency and introduce unwanted signals that can disrupt the links between cobs.
A research team at the University of Illinois at the Urbana Champion, led by Professor Jacob P. Kovi, recently realized the telecom band wavelength quantum networking using a row of Yteterbium-171 atoms. Their paper, appeared in Nature physicsIntroducing a promising approach to realizing the highly sincere confusion between atoms and optical photons produced directly into the telecommunication band.
“The joint confused quantum devices’ networks offer new opportunities in quantum information science,” Paper’s co -author, Xi Hua, told Faz.d.
“Ytterbium-171, which traditionally works in optical atoms watches due to its long-term metastable state, emerged as a resourceful candidate in the atom-conscious community with quantum counting and novel applications in metrology.”
Laser preparation table. Credit: Kovi Lab.
To understand their quantum network, be and his peers took advantage of individual features 171YB atoms, who promise long -distance communication. Their network is an important step towards the understanding of a network of quantum processors that can support computing or quantum networks divided for precise time capping and sensing applications.
“From the metastable state 171HU explained, YB 1389-NM has a moderate extensive transfer, which we used to feel the encoded confusion on time between an atom and a sincere telecom band Single Photon.
“By imaging a one -dimensional atom ending on the commercial fiber array, we showed that a combination of single photons, and consequently, may be parallel to the generation of confusion.”
Team platform review. A, an imaging system that maps a row of atoms in a high number of properties in optical battles in a row of single -mode optical fibers. The team uses a row of 20 tables with nominal ~ 4.7 μm, but a row of five tables of spanning 20 μm for maximum matching with fiber array MFD. Initta shows a typical V-Grovoved fiber array image that contains ten consecutive fibers. Researchers’ vision for parallel networking with atom array processors using B, fiber, detectors and BS arches. C, they use the time -to -be -encoding to confuse the metastable nuclear spin of the Attrabem 171 atom (blue pulses) with individual photons with the wavelengths of 1,389 nm (red pulses). D, after sending photons via 40 meters fiber, they use a TDI and SNSPDS for the atom-Photon Bell State feature. Credit: Kovi Lab.
The HU and his colleagues demonstrated the feasibility of their parallel quantum networking approach in a series of tests and found that it had exported the network equally highly confused and not equally highly confused and not. He then also engineered ‘mid circuit networking protocol’, a device that allows to preserve data coales during networking efforts.
“We have studied both physiological and technical factors in detail, which limit the time -to -encoded atom photon loyalty to confusion, and provide solid solutions for improvement,” he said.
“Importantly, we have shown that 99 % of loyalty is easily achieved with technical upgrade. Second, we confirmed that fiber array does not introduce sources of additional error that can hinder confusion.”
An important feature of 171Researchers employed by YB Atom Soldier are from its geometric imitation fiber array. Ho and his colleagues believe that their network can be useful for dealing with normal parallel tasks (ie, work that can be divided into small subcates and can be completed simultaneously in a network through different quaties or devices).
The design strategy and mid -circuit networking protocol developed by these researchers can soon be used to realize parallel quantum networks by other research teams. Protocol proved to be extremely promising for networking works, while steading to calculate or storage harmony on the same quantum processor within a large network.
Ho said, “One of the most improved as part of our future work is to use a cavity for a photon collection by using a purpose lens.” “Among others, cavity collecting provides enlargement orders, which increases the networking rate greatly.”
Researchers at Kovi Lab are currently designing a new second -generation Eatbeam experience, aimed at recognizing high rate and long -distance communication within the quantum network. In this experiment, the team intends to keep its atomic array inside the macroscope Confocal cavity, which is coated for 1,389-NM transition.
The HU added, “The time -to -encoded atom Futin Confusion as part of our recent work will eventually be extended to realize the confusion of remote atoms, either between two atoms, or two atoms in two different devices within the same apparatus.”
Our author was written for you by Angarid Fudley, which is edited by CD Harley, and the facts have been checked and reviewed by Robert Eagen. This article is the result of cautious humanitarian work. We rely on readers like you to keep free science journalism alive. If this reporting is important to you, please consider a donation (especially monthly). You will get one Ed -free Thanks as thank you.
More information:
Lento Li Et El, Parallel Telecom Quantum Networking with a Eatterbium 171 Atom Sournish, Nature physics (2025) DOI: 10.1038/s41567-025-03022-4. On Archeo: Doi: 10.48550/arxiv.2502.17406
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Reference: A new expansionist approach to realize the quantum communication network based on YTERBIUM-171 (October 115, October 11) on October 12, 2025 https://phys.org/news/2025-10-approach-communication-network.html.html.
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