Quantum Optical Memory Device One Thousand Times Smaller Than Previous Options

On-chip-scale quantum memory device is not only small, but is capable of on-demand data retrieval

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Scanning electron microscope image showing the nano-scale optical quantum memory fabricated in yttrium orthovanadate (YVO). The schematic shows that this device is an optical cavity that contains Nd atoms.
Scanning electron microscope image showes the nano-scale optical quantum memory fabricated in yttrium orthovanadate (YVO). The schematic shows that this device is an optical cavity that contains Nd atoms.
Image: Tian Zhong