The transverse spatial effects observed in photon pairs produced by parametric down-
conversion provide a robust and fertile testing ground for studies of quantum mechanics …

Systems entangled in high dimensions have recently been proposed as important tools for
various quantum information protocols, such as multibit quantum key distribution and …

We report the transfer of phase structure and, in particular, of orbital angular momentum from
near-infrared pump light to blue light generated in a four-wave-mixing process in Rb 85 …

Experimental observations are usually described using theoretical models that make
assumptions about the dimensionality of the system under consideration. However, would it …

Spatially entangled twin photons allow the study of high-dimensional entanglement, and the
Laguerre-Gauss modes are the most commonly used basis to discretize the single-photon …

Any practical experiment utilizing the innate D-dimensional entanglement of the orbital
angular momentum (OAM) of photons is subject to the generation capacity of the entangled …

We implement an interferometric method to measure the orbital angular momentum (OAM)
spectrum of photon pairs generated by spontaneous parametric down-conversion. In …

We report a high fidelity tomographic reconstruction of the quantum state of photon pairs
generated by parametric down-conversion with orbital angular momentum (OAM) …

Nonlinear optics is a very convenient way to generate photonic entanglement, that is,
ensembles of photons that show correlations in certain degrees of freedom that go beyond …

We generate intensity-difference-squeezed Laguerre-Gauss twin beams of light carrying
orbital angular momentum by using four-wave mixing in a hot atomic vapor. The …