| Abstract: | A quantum device includes a phononic crystal defined on a semiconductor
substrate. Phononic cavities are defined in the phononic crystal, wherein
each phononic cavity contains an implanted acceptor atom. Phononic
waveguides are defined in the phononic crystal, wherein each waveguide is
coupled to at least one phononic cavity. At least some phononic
waveguides are arranged to provide coupling between phononic cavities and
ultrasonic transducers. At least some phononic waveguides are arranged to
provide coupling between different phononic cavities. |