title: How much entanglement can be generated between two atoms by detecting photons?
abstract: It is possible to achieve an arbitrary amount of entanglement between two atoms using only spontaneously emitted photons, linear optics, single-photon sources, and projective measurements. This is in contrast to all current experimental proposals for entangling two atoms, which are fundamentally restricted to one entanglement bit or "ebit."
authors.affiliation: Instituto de Matemáticas y Física Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain. lamata@imaff.cfmac.csic.es
authors.forename: L
authors.initials: L
authors.lastname: Lamata
authors.forename: J J
authors.initials: JJ
authors.lastname: García-Ripoll
authors.forename: J I
authors.initials: JI
authors.lastname: Cirac