title: Even-order aberration cancellation in quantum interferometry.
abstract: We report the first experimental demonstration of even-order aberration cancellation in quantum interferometry. The effect is a spatial counterpart of the spectral group velocity dispersion cancellation, which is associated with spectral entanglement. It is manifested in temporal interferometry by virtue of the multiparameter spatial-spectral entanglement. Spatially entangled photons, generated by spontaneous parametric down-conversion, were subjected to spatial aberrations introduced by a deformable mirror that modulates the wave front. We show that only odd-order spatial aberrations affect the quality of quantum interference.
authors.affiliation: Department of Electrical & Computer Engineering, Boston University, Boston, Massachusetts 02215, USA.
authors.forename: Cristian
authors.initials: C
authors.lastname: Bonato
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Sergienko
authors.forename: Bahaa E A
authors.initials: BE
authors.lastname: Saleh
authors.forename: Stefano
authors.initials: S
authors.lastname: Bonora
authors.forename: Paolo
authors.initials: P
authors.lastname: Villoresi