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Quantencomputer besitzen heute erst wenige Qubits in einzelnen Aufbauten. Jetzt ist es gelungen, ein Quantengatter zwischen zwei Qubits in sechzig Metern Entfernung zu realisieren: ein Prototyp eines verteilt rechnenden Quantencomputers.
Neutral atoms trapped inside an optical cavity provide an ideal platform for the implementation of quantum networks [1]. In such a network, nodes containing multiple atomic qubits are essential for the construction of a quantum repeater as they allow for entanglement swapping and thus the generation of entanglement between qubits over long distances. Here we will show the realisation of such a multi-qubit...
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