Breakthroughs in Quantum Entanglement Propel Us Closer to Quantum Internet Reality
May 23, 2024Researchers in Boston have demonstrated entanglement between quantum network nodes over a 35-km fiber link, proving the feasibility of long-distance quantum entanglement in real-world conditions.
Terra Quantum AG in Switzerland implemented the QCKD protocol for secure quantum communication over a 1707 km fiber line.
Teams in China, Europe, and the US developed new protocols for generating verifiable quantum entanglement between nodes in a network, enabling the exchange of quantum information between distant quantum memories.
Quantum repeaters are crucial in allowing entanglement between quantum bits at intermediate points.
China successfully entangled rubidium-87 atoms using the DLCZ protocol.
Europe utilized solid-state quantum memories made from vacancy centers in diamond.
The Harvard team in the US developed a distributed quantum computer.
These advancements mark significant progress towards establishing a practical quantum communication network and potentially leading to a quantum version of the Internet.
Summary based on 3 sources
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Sources
Physics World • May 22, 2024
Quantum entanglement expands to city-sized networks – Physics WorldLaser Focus World • May 21, 2024
Physicists demo network of nanophotonic quantum memory nodes atop telecom fiber