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Complementarity Reveals Bound Entanglement of Two Twisted Photons
Beatrix C. Hiesmayr, Wolfgang Löffler
We witness for the first time the generation of bound entanglement of two photon qutrits, whose existence has been predicted by the Horodecki family in 1998. Detection of these hea…
Total Internal Reflection of Orbital Angular Momentum Beams
W. Löffler, N. Hermosa, Andrea Aiello +1
We investigate how beams with orbital angular momentum (OAM) behave under total internal reflection. This is studied in two complementary experiments: In the first experiment, we s…
Full-field quantum correlations of spatially entangled photons
V. D. Salakhutdinov, E. R. Eliel, W. Löffler
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 mod…
Observation of OAM sidebands due to optical reflection
W. Löffler, Andrea Aiello, J. P. Woerdman
We investigate how the orbital angular momentum (OAM) of a paraxial light beam is affected upon reflection at a planar interface. Theoretically, the unavoidable angular spread of t…