David Deutsch

David Deutsch is a British physicist at the University of Oxford, widely regarded as one of the founders of quantum computing. In his 1985 paper Quantum theory, the Church-Turing principle and the universal quantum computer, Deutsch proposed the Church-Turing-Deutsch principle, extending the classical Church-Turing thesis to quantum mechanical systems. His work established the theoretical foundations for quantum computing and introduced the quantum Turing machine as a universal model for quantum computation. Deutsch is also known for his many-worlds interpretation of quantum mechanics and his argument that quantum computation provides experimental evidence for the many-worlds interpretation. His broader philosophical project treats knowledge creation — through conjecture and criticism — as the fundamental phenomenon of which physics itself is a special case.