How to create and detect N-dimensional entangled photons with an active phase hologram

Martin Stütz, Simon Gröblacher, Thomas Jennewein, Anton Zeilinger

Publications: Contribution to journalArticlePeer Reviewed

Abstract

The experimental realization of multidimensional quantum states may lead to unexplored and interesting physics, as well as advanced quantum communication protocols. The orbital angular momentum of photons is a well suitable discrete degree of freedom for implementing high-dimensional quantum systems. The standard method to generate and manipulate such photon modes is to use bulk and fixed optics. Here the authors demonstrate the utilization of a spatial light modulator to manipulate the orbital angular momentum of entangled photons generated in spontaneous parametric downconversion. They show that their setup allows them to realize photonic entanglement of up to 21 dimensions, which in principle can be extended to even larger dimensions. © 2007 American Institute of Physics.
Original languageEnglish
Article number261114
Number of pages3
JournalApplied Physics Letters
Volume90
Issue number26
DOIs
Publication statusPublished - 2007

Austrian Fields of Science 2012

  • 103026 Quantum optics

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