Non-volatile and reprogrammable MQCA-based majority gates

Single-domain, lithographically-defined nanomagnets can form circuits in a quantum-dot-cellular-automata-like architecture scheme (MQCA). Lines, gates, and inverters have been experimentally realized, and operate at room temperature. It is estimated that if 10
¹⁰
magnets switch 10
⁸
times/s, the magnets would dissipate ~0.1 W.