Intrinsitivity

Superconducting Qubits Tie the NOT Gate

Researchers are creeping closer to a small quantum computer built from loops of superconducting metal. A team has demonstrated a key ingredient of such a computer by using one superconducting loop to control the information stored on a second. Combined with other recent advances, the result may pave the way for devices of double the size in the next year or two—closer to what other quantum computing candidates have achieved, says physicist Hans Mooij of the Delft University of Technology in the Netherlands.