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.
The researchers also sent phonons from opposite directions into the beam splitter to be manipulated by their respective superposition states.
Said Cleland, “Phonons are somehow more tangible, more ‘meaty’ than light, but they have been showing the same quantum behaviors.”
From New Scientist
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