Home About us About us Research at the Max Planck Institute of Quantum Optics Light can behave as an electromagnetic wave or a shower of particles that have no mass, called photons, depending on the conditions under which... more The History of the Institute Please find information on the history of the Max Planck Institute of Quantum Optics on the following pages! more Service Groups With their specific expertise the service groups at MPQ provide the environment necessary for successful research. more Staff Visiting Researchers