Środowiskowe Seminarium z Informacji i Technologii Kwantowych

We discuss the idea of witnessing non-classicality of an unknown quantum state. A corresponding witness of non-classicality was introduced and operationally defined by S. Agarwal and J.H. Eberly in Phys. Rev. A 86, 022341 (2012). We apply this formalism to a relativistic model of Unruh-deWitt detectors with the aim of verifying the impact of relative motion on the performance of such witnesses. [Work in progress].