Bell Inequality Violation with Two Remote Atomic Qubits
Bell Inequality Violation with Two Remote Atomic Qubits
We observe violation of a Bell inequality between the quantum states of two remote Yb+ ions separated by a distance of about 1 m with the detection loophole closed. The heralded entanglement of two ions is established via interference and joint detection of two emitted photons, whose polarization is entangled …