Optical fiber–based, single-photon light source at room temperature for next-generation quantum processing

https://phys.org/news/2023-11-optical-fiberbased-single-photon-source-room.html

"cheap, faster computing and stronger encryption... create entangled photon pairs... excited ytterbium ion has long fluorescence 1 ms lifetime... single ytterbium ion in doped filter in amorphous silica optical fiber at room temperature.... single-photon light source with selectable wavelength... quantum true random number generators, free-space and fiber telecommunication, quantum logic operations, high-resolution image analysis beyond diffraction limit, and high-resolution image analysis"