Physicists have designed the building blocks of quantum computer that works using sound
Arxiv – On-chip quantum phonodynamics (6 pages) ABSTRACT – Sound can be just as quantum as light. But our toolbox for single quanta of sound, i.e. phonons, is currently insufficient. Here we describe a new component that enables a chip-based, solid-state analogue of cavity-QED utilizing acoustic phonons instead of photons, phonitons instead of polaritons. We …