However , the experiment still suffered from the locality loophole because the qubits were only separated by a few millimeters .
This experiment surmounted the detection loophole using a pair of superconducting qubits in an entangled state .
The experiment still suffered from the locality loophole because the qubits were only separated by a few millimeters .
This experiment surmounted the detection loophole using a pair of superconducting qubits in an entangled state .