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NIST researchers entangle four trapped ions

Mar 16, 2000

Charles Sackett and colleagues at NIST report entangled states of four trapped ions. A single laser pulse creates the entanglement through the ions' shared motion, using a method that can in principle extend to larger groups.

Why it matters

Entangling several matter qubits together advances the control needed for quantum algorithms and error-correcting codes beyond two-qubit demonstrations.

Charles Sackett · David Kielpinski · David Wineland · Chris Monroe · NIST

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