Also known as matrix mechanics and quantum theory, quantum physics is a branch of scientific study which focusses on nature at the sub-atomic level. As distinct from classical physics, which deals with the behaviour of nature at the human scale, quantum theory centres on why atoms – and the sub-atomic particles that make them up – behave in a different way than such a theory would suggest. Linking quantum physics to classical physics has long been the aim of many scientific researchers. Although quantum physics is an ongoing area of research to this day, it was developed on the papers published by famous twentieth-century physicists, notably Albert Einstein, Erwin Schrödinger, Werner Heisenberg and Max Born.
