Manipulating spatial qudit states with programmable optical devices

Details Manipulating spatial qudit states with programmable optical devices Manipulating spatial qudit states with programmable optical devices

2009-04-28

arxiv.org/abs/0904.4336v2

Optics Express 17, 10688-10696 (2009)

Physics

Quantum Physics

Scientific paper

The study of how to generate high-dimensional quantum states (qudits) is justified by the advantages that they can bring for the field of quantum information. However, to have some real practical potential for quantum communication, these states must be also of simple manipulation. Spatial qudits states, which are generated by engineering the transverse momentum of the parametric down-converted photons, have been until now considered of hard manipulation. Nevertheless, we show in this work a simple technique for modifying these states. This technique is based on the use of programmable diffractive optical devices, that can act as spatial light modulators, to define the Hilbert space of these photons instead of pre-fabricated multi-slits.

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