Aaron Douglas O'Connell (born March 5, 1981, in Allentown, Pennsylvania) is an American experimental quantum physicist. While working under Andrew N. Cleland and John M. Martinis at the University of California, Santa Barbara, he created the world's first quantum machine. In particular, he was able to transfer the quantum state of a superconducting quantum bit, a device used in quantum computation, to the motional state of a macroscopic mechanical resonator.
