A team of engineers from Northwestern University in the United States has achieved a significant breakthrough in the field of quantum communications by successfully performing quantum teleportation over 30 kilometers of fiber optic cable already carrying conventional Internet traffic.
This achievement demonstrates that it is possible to combine quantum communication with existing fiber optic infrastructure, potentially simplifying the implementation of future quantum networks without the need to build costly new infrastructures.
Quantum teleportation relies on quantum entanglement, a phenomenon where two particles become linked in such a way that the information shared between them is transmitted instantaneously, regardless of the distance separating them. In this experiment, the researchers identified a less saturated wavelength for individual photons and added special filters to reduce noise from regular Internet traffic, allowing quantum and classical signals to coexist without interference.
This breakthrough paves the way for the next generation of communication networks that integrate both classical and quantum signals into a unified infrastructure, bringing us closer to a future where communications are faster and more secure.
Source: abc
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