Researchers at QuTech in Delft have succeeded in generating quantum entanglement between two quantum chips faster than the entanglement is lost.
Entanglement – once referred to by Einstein as “spooky action” – forms the link that will provide a future quantum internet its power and fundamental security. Via a novel smart entanglement protocol and careful protection of the entanglement, the scientists led by Prof. Ronald Hanson are the first in the world to deliver such a quantum link ‘on demand’. This opens the door to connect multiple quantum nodes and create the very first quantum network in the world.
By exploiting the power of quantum entanglement it is theoretically possible to build a quantum internet that cannot be eavesdropped on. However, the realization of such a quantum network is a real challenge: you have to be able to create entanglement reliably, ‘on demand’, and maintain it long enough to pass the entangled information to the next node. So far, this has been beyond the capabilities of quantum experiments.
Scientists at QuTech in Delft have now been the first to experimentally generate entanglement over a distance of two metres in a fraction of a second, ‘on demand’, and subsequently maintain this entanglement long enough to enable -in theory- further entanglement to a third node. ‘The challenge is now to be the first to create a network of multiple entangled nodes: the first version of a quantum internet’, professor Hanson states.
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The Latest on: Quantum internet
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