Polarimetric measurements of single-photon geometric phases
arXiv:1510.03802 · doi:10.1103/PhysRevA.89.012124
Abstract
We report polarimetric measurements of geometric phases that are generated by evolving polarized photons along non-geodesic trajectories on the Poincaré sphere. The core of our polarimetric array consists of seven wave plates that are traversed by a single photon beam. With this array any SU(2) transformation can be realized. By exploiting the gauge invariance of geometric phases under U(1) local transformations, we nullify the dynamical contribution to the total phase, thereby making the latter coincide with the geometric phase. We demonstrate our arrangement to be insensitive to various sources of noise entering it. This makes the single-beam, polarimetric array a promising, versatile tool for testing robustness of geometric phases against noise.
9 pages, 4 figures
References in corpus (5)
- Geometric phase with nonunitary evolution in presence of a quantum critical bath
- Geometric phase distributions for open quantum systems
- Observation of nonadditive mixed state phases with polarized neutrons
- Measurement of Pancharatnam's phase by robust interferometric and polarimetric methods
- Noncyclic Pancharatnam phase for mixed state SU(2) evolution in neutron polarimetry