Observation of nonadditive mixed state phases with polarized neutrons
Quantum Physics
2009-11-13 v1
Abstract
In a neutron polarimetry experiment the mixed state relative phases between spin eigenstates are determined from the maxima and minima of measured intensity oscillations. We consider evolutions leading to purely geometric, purely dynamical and combined phases. It is experimentally demonstrated that the sum of the individually determined geometric and dynamical phases is not equal to the associated total phase which is obtained from a single measurement, unless the system is in a pure state.
Cite
@article{arxiv.0809.0572,
title = {Observation of nonadditive mixed state phases with polarized neutrons},
author = {J. Klepp and S. Sponar and S. Filipp and M. Lettner and G. Badurek and Y. Hasegawa},
journal= {arXiv preprint arXiv:0809.0572},
year = {2009}
}
Comments
RevTex, 4 pages, 4 figures, accepted by PRL