Trapped-ion quantum computer
= Trapped-ion quantum computer
A quantum processor encoding <qubits> in long-lived internal states of confined <ions>. Coherent drives implement single-qubit rotations; shared vibrational modes can mediate <quantum entanglement>[entangling] gates. Individual <fluorescence> <quantum measurements>[measurements] distinguish bright and dark <qubit> levels. Mode crowding and residual spin-motion entanglement complicate gates as a single chain grows.