Quantum state transformations by multiport array beam splitters
Armando Pérez-Leija, Robert Keil, H. M. Moya-Cessa, Alexander Szameit, Demetrios N. Christodoulides · 2012
We introduce a multiport waveguide array beam-splitter that emulates the action of the angular momentum matrix Jx. Quantum transformations carried out by such devices are discussed and pertinent examples are provided.