Quantum aspects of beam physics

The continued demand for higher beam energies, luminosities, and brightness, induces increasing number of beam phenomena that involve quantum effects. In this paper we review the various quantum aspects of beam physics, with emphasis on their recent advances. These include quantum effects in beam dynamics, electron-photon interaction, beam phenomena under strong fields, fundamental physics under violent acceleration, and quantum methodology in beam physics. We conclude with a future outlook of this very exciting new field by the name quantum beam physics.