title: Polarization entangled photons at x-ray energies.
abstract: We show that polarization entangled photons at x-ray energies can be generated via spontaneous parametric down-conversion. Each of the four Bell states can be generated by choosing the angle of incidence and polarization of the pumping beam.
authors.affiliation: Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. shwartz@stanford.edu
authors.forename: S
authors.initials: S
authors.lastname: Shwartz
authors.forename: S E
authors.initials: SE
authors.lastname: Harris