International team develops 3D quantum storage technology

Science and Technology Daily, Seoul, June 4 (Reporter Xue Yan) An international joint team, including the Ulsan Institute of Science and Technology of South Korea, recently developed an original technology of "3D quantum memory", and found the phenomenon of "nano crystal bidirectional optical switch" that can control the infinite repeated flickering in photoactive nanoparticles (ANP).ANP is a material developed by the team in 2021

Science and Technology Daily, Seoul, June 4 (Reporter Xue Yan) An international joint team, including the Ulsan Institute of Science and Technology of South Korea, recently developed an original technology of "3D quantum memory", and found the phenomenon of "nano crystal bidirectional optical switch" that can control the infinite repeated flickering in photoactive nanoparticles (ANP).

ANP is a material developed by the team in 2021. At that time, the team induced the chain amplification reaction in the ultramicro nanocrystals in the lanthanide metal doped nanoparticles, and thus found the extremely amplified beam phenomenon and ANP. The research results were then published in the form of a cover paper in Nature.

In this research, the team successfully achieved the goal of light stability of lanthanide metal doping nanoparticles. Using near-infrared radiation, thousands of repeated switching experiments were successfully conducted in various surrounding environments without any signs of thermal denaturation.

Researchers have shown that using a simple small laser wavelength can control light and convert it to other wavelengths. The near infrared light can minimize phototoxicity or light scattering, and can penetrate into biological tissues and inorganic chemistry substances. The infinitely repeatable bidirectional optical switch, like the CD-ROM or CD-RW principle in the past, will be developed into faster, more accurate and more precise optical quantum memory technology and devices in the future to store huge data generated by ultra high performance quantum computer.

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