Prabhakar, Shashi; Salla, Gangi Reddy; Aadhi, A.; Perumangatt, Chithrabhanu; Samanta, Goutam Kumar; Singh, Ravindra P.
(American Physical Society, 2015-08)
We have considered optical beams with phase singularity and experimentally verified that these beams, although classical, have properties of two-mode entanglement in quantum states. We have observed the violation of Bell's ...