title: Happy centenary, photon.
abstract: One hundred years ago Albert Einstein introduced the concept of the photon. Although in the early years after 1905 the evidence for the quantum nature of light was not compelling, modern experiments--especially those using photon pairs--have beautifully confirmed its corpuscular character. Research on the quantum properties of light (quantum optics) triggered the evolution of the whole field of quantum information processing, which now promises new technology, such as quantum cryptography and even quantum computers.
authors.affiliation: Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria. zeilinger-office@quantum.at
authors.forename: Anton
authors.initials: A
authors.lastname: Zeilinger
authors.forename: Gregor
authors.initials: G
authors.lastname: Weihs
authors.forename: Thomas
authors.initials: T
authors.lastname: Jennewein
authors.forename: Markus
authors.initials: M
authors.lastname: Aspelmeyer