Quantum teleportation for the first time over internet infrastructure 2026

In 2024 a quantum state of light was successfully transported over a fiber optic cable over 30 km long. Something that was thought to be impossible and maybe someday we will be allowed to move to another place or download our favorite videos even faster.

It is worth noting that the ability to teleport quantum states over existing fiber optic infrastructure is a major step toward achieving a quantum computing network, improved encryption and powerful new detection methods, according to Northwestern University computer engineer Prem Kumar, one of the study's authors.

The process works like this: The quantum state of an object at one point is measured and destroyed, while at the same time the exact same state appears in another object somewhere else in space. This is due to quantum entanglement, a phenomenon where two particles are so tightly bound that the fate of one determines the fate of the other, regardless of distance.

Quantum teleportation, however, does not violate the laws of physics and to complete it, it is always necessary to send an information signal from one point to another. The big problem though is that quantum states are extremely fragile. With heat, radiation and collisions with other particles being able to destroy information in an infinitesimal amount of time.

Somehow sending a single photon through optical fibers when there is also normal internet traffic, banking transactions, messages, any kind of digital noise, is a much more difficult process. The researchers use a specific example to help us understand this, which is that it's like trying to throw cotton candy into a huge river and hope it doesn't melt.

The research, which is available here describes just that. They managed to preserve the quantum information of a photon and teleport it alongside real internet traffic. Which amply proves that quantum communication can co-exist with existing network infrastructure.

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