Charles Bennett and Gilles Brassard Receive Turing Award for Founding Quantum Information Theory

Charles Bennett and Gilles Brassard, pioneers in quantum information theory, have been awarded the ACM A.M. Turing Award, the highest honor in computer science. Their collaboration began in 1979 during a chance meeting off the coast of Puerto Rico, where they discussed applying quantum mechanics to cryptography, an idea originally inspired by a classmate of Bennett’s who envisioned uncounterfeitable digital money in the 1960s. Together, Bennett and Brassard developed the BB84 protocol, laying the foundation for quantum cryptography. Their work demonstrated that quantum phenomena, once considered a nuisance in electronics, could be harnessed to solve problems in computing. While quantum computing as a field was independently conceived, the duo contributed significantly to its development, including designing mechanisms for quantum teleportation and influencing thoughts on a future quantum internet. Today, their theories are deeply embedded in the ongoing development of quantum computers and secure quantum communication. Both scientists remain active: Bennett continues at IBM, while Brassard teaches at the Université de Montréal. Their legacy underscores the enduring impact of theoretical breakthroughs on practical technological advancements.