Abstract
Quantum processors based on atoms or ions have developed thanks to techniques enabling them to be trapped one by one and their internal quantum states to be optically manipulated. This lecture will present the main operating principles of these atomic quantum processors : trapping of neutral or ionized atoms, quantum states chosen as carriers of quantum information, and the physical principles used to entangle several particles. These processors can already be used for analog computation, also known as quantum simulation. The first protocols for error correction on the digital computing side have recently been developed.
