Communications in Physics 26
, 99-109 (2016)
SIMPLE EXPERIMENTAL SETUPS FOR OBSERVING WAVE-PARTICLE AND ENTANGLEMENT-SEPARABILITY SUPERPOSITIONS
NGUYEN BA AN
It has been long believed that wave and particle cannot be superposed. Recently, however, modern quantum techniques have allowed one to prepare photon wave-particle superpositions experimentally. In this work, we suggest simple setups, which resort to neither any extra quantum resources nor controlled-Hadamard gates, to observe such superpositions as well as
entanglement-separability superpositions with tunable entanglement degree. The suggested setups can also serve as an interaction-free method to detect partially absorbing objects.