Quantum bits (qubits) based on cold atoms are increasingly attractive candidates for quantum computing. However, targeting single atoms in an array with lasers to manipulate them individually for processing quantum information remains a challenge. Now, Francesco Cesa and Hannes Pichler at Austria’s University of Innsbruck have designed a new protocol for quantum computation that does not rely on targeting individual atoms. Other researchers are now trying to implement the protocol in the lab.
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