Pancharatnam phase in non-separable states of light
Abstract
We generate the non-separable state of polarization and orbital angular momentum (OAM) using a laser beam. The generated state undergoes a cyclic polarization evolution which introduces a Pancharatnam geometric phase to the polarization state and in turn a relative phase in the non-separable state. We experimentally study the violation of Bell - CHSH inequality for different Pancharatnam phases introduced by various cyclic polarization evolutions with linear and circular states as measurement bases. While measuring in linear bases, the Bell-CHSH parameter oscillates with Pancharatnam phase. One can overcome this dependence by introducing a relative phase in one of the projecting state. However for measurement in circular bases, the Pancharatnam phase does not affect the Bell-CHSH violation.
Keywords
Cite
@article{arxiv.1605.05478,
title = {Pancharatnam phase in non-separable states of light},
author = {Chithrabhanu Perumangatt and Salla Gangi Reddy and Nijil Lal and Aadhi A and Ali Anwar and R. P. Singh},
journal= {arXiv preprint arXiv:1605.05478},
year = {2016}
}
Comments
12 pages, 10 figures