University of Chicago (UChicago) researchers have shown that building sound-based quantum computers is feasible.UChicago's Andrew Cleland and colleagues built a chip-sized device from components of a conductive material that can generate individual phonons for transmission.The device is cooled to 0.01 kelvin (-459 degrees Fahrenheit) to induce quantum effects in the phonons, while a beam splitter causes any striking phonon to assume a quantum superposition state.
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