title: Preparing arbitrary pure states of spatial qudits with a single phase-only spatial light modulator.
abstract: Spatial qudits are D-dimensional (D ≥ 2) quantum systems carrying information encoded in the discretized transverse momentum and position of single photons. We present a proof-of-principle demonstration of a method for preparing arbitrary pure states of such systems by using a single phase-only spatial light modulator (SLM). The method relies on the encoding of the complex transmission function corresponding to a given spatial qudit state onto a preset diffraction order of a phase-only grating function addressed at the SLM. Fidelities of preparation above 94% were obtained with this method, which is simpler, less costly, and more efficient than those that require two SLMs for the same purpose.
authors: M A
authors: MA
authors: Solís-Prosser
authors: A
authors: A
authors: Arias
authors: J J M
authors: JJ
authors: Varga
authors: L
authors: L
authors: Rebón
authors: S
authors: S
authors: Ledesma
authors: C
authors: C
authors: Iemmi
authors: L
authors: L
authors: Neves