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World first: Delft researchers succeed in teleporting data

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Delft researchers have been able to teleport from science fiction to the real world, at least the quantum world. QuTech researchers are the first in the world to succeed in teleporting data. This is an important development in the study of the quantum Internet. Trau’s report. The study was published in the journal Nature this week.

According to classical laws of physics, important things cannot move faster than light. So it should be impossible to make matter and information disappear from a certain point and at the same time reappear on the other side of the world, right? Wrong, according to QuTech researchers, a collaboration between TU Delft and TNO. Quantum physics, not the normal world of classical physics, but teleporting is possible.

Four years ago, QuTech and other scientists around the world proved that teleporting quantum information is possible in principle. Now QuTech researchers have been able to do that in practice. Magic occurs when two elementary particles are in the same quantum state. Even if they end up in different corners of the universe, the two will remain connected forever. When one changes, the other changes at the same time.

This phenomenon is called entanglement and can be used to transfer quantum information. QuTech has demonstrated it in a network with three nodes and three quantum processors, which researchers have named Alice, Bob, and Charlie. Bob is connected to both Alice and Charlie with fiberglass, but Alice and Charlie have no physical connection. These are the start and end points of this network. Bob entwines his condition with Alice’s condition and facilitates teleporting by doing the same thing as Charlie. Bob is a quantum trick that coordinates the entanglement and viola of these two. This will also encode the two endpoints in your network.

Now, if you change Charlie’s quantum state, that information will be displayed to Alice at exactly the same time. The notable thing about quantum states, or “qubits” in jargon, is that they cannot be transferred. They exist in the dark until you measure them. When they are measured, that information is lost. Therefore, Charlie’s quantum state is measured when it changes and disappears, and appears in Alice at exactly the same time. teleportation!

Cubit vulnerabilities make this research so complicated-as soon as you do something to the qubit, the qubit information is lost. You can’t even copy them. But that is also a big advantage. This is because the theoretical quantum Internet still guarantees the privacy of communications. If someone tries to intercept the message, the message disappears. Only the sender and the recipient can get it.

In the future, the quantum Internet will be integrated with the quantum computer that is still under construction. Quantum computers use another magic from quantum physics. This is a phenomenon in which a particle can assume multiple quantum states at the same time. Unlike today’s bits, qubits do not have to be 0 or 1, but they can be both at the same time. As a result, quantum computers can, among other things, calculate many times faster than today’s fastest computers.

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