Experimental demonstration of a quantum repeater segment with co-trapped 40Ca+ ions using telecom photon interference over 440 m fiber, achieving ≥68(8)% Bell state fidelity.
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Quantum repeater segment with free-space coupled co-trapped ions using telecom photon interference
Experimental demonstration of a quantum repeater segment with co-trapped 40Ca+ ions using telecom photon interference over 440 m fiber, achieving ≥68(8)% Bell state fidelity.