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A quantum world on a silicon chip - EurekAlert
Over the past few years, researchers have discovered defects in silicon — a ubiquitous semiconductor material — that could be used to send and store quantum information over widely-used telecommunications wavelengths. Could these defects in silicon be the best choice among all the promising candidates to host qubits for quantum communications? Now SEAS researchers have developed a platform to probe, interact with and control these potentially powerful quantum systems. The device uses a simple electric diode to manipulate qubits inside a commercial silicon wafer. Using this device, the researchers were able to explore how the defect responds to changes in the electric field, tune its wavelength within the telecommunications band and even turn it on and off.
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