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A laser to generate randomness for next-gen information security and encryption 2nd March 2021 Scientists from Trinity’s School of Physics, with collaborators at Yale University, CentraleSupelec, France, and Nanyang Technological University in Singapore, have developed a tiny chip-scale laser system to harvest quantum fluctuations in semiconductor lasers on ultrasmall scales at unprecedented speed. The new technology can be used to underpin modern technologies’ requirements for randomly generated digital information. Their technique, published today in Science, uses a specially designed hour-glass-shaped semiconductor laser to generate hundreds of tiny, random light waves that when detected with a device called a photodetector, can be transformed into random strings of ‘1’s and ‘0’s, or binary code, which is at the foundation of modern digital communications.

Ortwin hessHui caoYale universityTrinity school of physicsSchool of physicsNanyang technological universityInstitute at trinityProfessor ortwin hessஹுய் சாவ்யேல் பல்கலைக்கழகம்திரித்துவம் பள்ளி ஆஃப் இயற்பியல்பள்ளி ஆஃப் இயற்பியல்நிறுவனம் இல் திரித்துவம்