Quantum networks with coherent routing of information through multiple nodes Large-scale communication networks, such as the Internet, rely on routing packets of data through multiple intermediate nodes to transmit information from a sender to a receiver. In this paper, we develop a model of a quantum communication network that routes information simultaneously along multiple paths passing through intermediate stations. We demonstrate that a quantum routing approach can in principle extend the distance over which information can be transmitted reliably. Surprisingly, the benefit of quantum routing also applies to the transmission of classical information: even if the transmitted data is purely classical, delocalising it on multiple routes can enhance the achievable transmission distance. Our findings highlight the potential of a future quantum internet not only for achieving secure quantum communication and distributed quantum computing but also for extending the range of classical data transmission. https://lnkd.in/esHZkbyh
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Outstanding development. I would add that based on the risk impact and exposure and which layer of the OSI network model architecture layer, the next step would be to prioritize and optimize those specific network segments to feed the risk model. A development I will be following. However, this development is being held up because quantum information can be lost when transmitted over long distances. One way to overcome this barrier is to divide the network into smaller segments and link them all up with a shared quantum state. To do this requires a means to store the quantum information and retrieve it again: that is, a quantum memory device. This must 'talk' to another device that allows the creation of quantum information in the first place. For the first time, researchers have created such a system that interfaces these two key components and uses regular optical fibers to transmit the quantum data. #Kyndryl #BluLyte
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Breakthrough in quantum networks! Researchers achieved data transmission using optical fibers. Their system interfaces devices creating & storing quantum data, both at the same wavelength. This paves the way for a more robust quantum internet! #quantumcomputing #research https://lnkd.in/dwwfVGfy
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Crack new method for high-capacity, secure quantum communication A significant breakthrough in creating a new method for transmitting quantum information using particles of light called qudits. These qudits promise a future quantum internet that is both secure and powerful. Traditionally, quantum information is encoded on qubits, which can exist in a state of 0, 1, or both at the same time (superposition). This quality makes them ideal for complex calculations but limits the amount of data they can carry in communication. Conversely, qudits can encode information in higher dimensions, transmitting more data in a single go. The new technique harnesses two properties of light—spatial mode and polarization—to create four-dimensional qudits. These qudits are built on a special chip that allows for precise manipulation. This manipulation translates to faster data transfer rates and increased resistance to errors compared to conventional methods. One of the key advantages of this approach is the qudits' ability to maintain their quantum properties over long distances. This makes them perfect for applications like satellite-based quantum communication, where data needs to travel vast distances without losing its integrity. The process starts with generating a special entangled state using two photons. Entanglement is a phenomenon where two particles become linked, sharing the same fate regardless of physical separation. In this case, one photon (the signal photon) is manipulated on the chip to create a 4D qudit using its spatial mode and polarization. The other photon (idler photon) remains unchanged and acts as a remote control for the signal photon. By manipulating the idler photon, scientists can control the state of the signal photon and encode information onto it. This new method has the potential to revolutionize the field of quantum communication. It paves the way for a high-speed quantum internet that can transmit massive amounts of data securely over long distances. Additionally, it can lead to the development of unbreakable encryption protocols and contribute to the creation of powerful quantum computers capable of tackling problems beyond the reach of classical computers.
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We are about to whiteness dramatic changes in compute and data transmission. First, Google is breaking ground in quantum computing, second we have a proof of concept of quantum teleportation over busy internet infrastructure here https://lnkd.in/dMi5aGMG The communication and entirety of digital as we know will be entirely changed as soon as these are adopted even a little bit. If Google, or any other entity, will be able to train and run LLMs using quantum computing and then use the teleportation abilities for instant data availability, we will suddenly live in the future presented by the craziest science-fiction possible.
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IonQ (NYSE: IONQ), a leader in the quantum computing industry, announced it has achieved the next milestone on the path towards scaling its quantum systems – demonstrating remote ion-ion entanglement. Building off the ion-photon entanglement achievement announced in February, this demonstration announced in September showcases the second out of four significant milestones required to develop photonic interconnects – a foundational step towards quantum networking and a core component of IonQ’s scaling strategy. IonQ’s world-class R&D team entangled two trapped ion qubits from separate trap wells using entangled photons to achieve these results. The IonQ team achieved remote entanglement by developing a system to collect photons from two trap wells and routing them to a single detection hub. This critical “point-to-point” step established a quantum communication link – an essential piece in scaling quantum systems. While IonQ has always intended to implement photonic interconnects in its systems, never before has any company demonstrated the ability to bring this technology to an integration stage within a commercially available, enterprise-grade quantum computer.
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Quantum Communications… Quantum teleportation
Quantum teleportation is a reality for quantum computers, enabling distributed quantum computing. Now we just need to makes it secure. https://lnkd.in/efCcBhPT
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Quantum teleportation is a reality for quantum computers, enabling distributed quantum computing. Now we just need to makes it secure. https://lnkd.in/efCcBhPT
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This article discusses a groundbreaking achievement by scientists at Northwestern University, who have successfully demonstrated quantum teleportation using existing fiber optic cables that also carry regular internet traffic. This discovery could simplify the infrastructure needed for quantum computing and advanced technologies by merging quantum and classical communications. It's an exciting development that opens the door to next-generation quantum networks sharing the same network as today's internet systems. https://lnkd.in/eTDu2Xs4
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First quantum internet made in Holland 🦁 https://lnkd.in/ezaQwri8 Scientists were able to send qbits with a predefined entangled state to two cities, Den Haag and Delft, 25km apart, over a perfectly aligned fiber cable. The describe the level of alignment needed as the same relative precision as keeping the moon at exactly the same distance to earth with 1mm accuracy. Sending entagled qbits to two different quantum computers can open doors to a new type of encryption key generation, to securely send data such as cat memes. Wow.
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