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Observation of local entanglement oscillation in free space
Eileen Otte, Carmelo Rosales-Guzmán, Bienvenu Ndagano +2
It is well known that the entanglement of a quantum state is invariant under local unitary transformations. It dictates, for example, that the degree of entanglement of a photon pa…
Dynamics of the optical swallowtail catastrophe
Alessandro Zannotti, Falko Diebel, Cornelia Denz
Perturbing the external control parameters of nonlinear systems leads to dramatic changes of its bifurcations. A branch of singular theory, the catastrophe theory, analyses the gen…
Pearcey solitons in curved nonlinear photonic caustic lattices
Alessandro Zannotti, Matthias Rüschenbaum, Cornelia Denz
Controlling artificial Pearcey and swallowtail beams allows realizing caustic lattices in nonlinear photosensitive media at very low light intensities. We examine their functionali…
Optical catastrophes of the swallowtail and butterfly beams
Alessandro Zannotti, Falko Diebel, Martin Boguslawski +1
We experimentally realize higher-order catastrophic structures in light fields to access the rich class of caustic swallowtail and butterfly beams. These beams present solutions of…