Scientists managed to demonstrate the possibilities of the quantum Internet. They were able to transfer information from one side of the quantum network to the other through an intermediate network node without affecting it, according to New Scientist..

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A quantum network can teleport information between unconnected nodes using something called quantum entanglement.. Objects that share quantum entanglement have associated properties. Entanglement is central to the concept of the quantum internet, which could greatly improve privacy over today's internet systems.. One idea is to build a network of linked quantum bits or qubits that are intertwined with qubits elsewhere in the network, rather than the neighboring nodes they are directly connected to.. But the entanglement of these network qubits has so far only been demonstrated with directly connected qubits..

Roland Hanson of the University of Delft and his colleagues built a simple quantum network that contained several qubits connected to three nodes.. They were named Alice, Bob and Charlie. There was no direct connection between Alice and Charlie, only an indirect one that each of them shared with Bob.. But Alice and Charlie shared quantum entanglement, meaning you couldn't measure information from one without changing the state of the other..

When Charlie's quantum state changed, so did Alice's state.. That is, the information "

“This is real teleportation, like in science fiction films.. State or information really disappears on one side and appears on the other, and because it doesn't travel through the space between them, [data] can't get lost either,"

The existence of quantum entanglement was theoretically justified decades ago, but in this case, scientists were able to demonstrate it due to the fact that the qubits at the nodes include “memory” qubits that can hold quantum states for longer periods of time than standard qubits..

Building a quantum internet network does not provide any increase in speed compared to a conventional system, even if two nodes in the network change at the same time. This is because users communicating about changes in the network must do so through traditional, non-quantum communication.. But the quantum network does offer private features like eavesdrop-proof communications or data servers that can never discover the source of the data they're grinding..

“There are probably many more [applications] that we have yet to figure out,” Hanson said..

Previously, scientists from the UK and the US created a quantum neural network and proved that it is capable of learning.. The researchers were able to determine that convolutional neural networks do not suffer from the “barren plateau” problem and are guaranteed to be trainable..