Analogous to a charge-coupled device (CCD) camera, which stores and processes imaging information as movable electrical charges in coupled pixels, a QCCD computer stores quantum information in the internal state of electrically charged ions that are transported between different processing zones using dynamic electric fields. The trapped-ion quantum charge-coupled device (QCCD) proposal 1, 2 lays out a blueprint for a universal quantum computer that uses mobile ions as qubits.
