Detecting objects without any physical interaction – reality or science fiction?

Nanowerk  April 5, 2024
An international team of researchers (Portugal, Brazil) analysed nonclassical resources in interference phenomena using generalized noncontextuality inequalities and basis-independent coherence witnesses. They used inequalities that witness both resources within the same framework. In view of the previous contextual advantage results, they proposed a systematic way of applying these tools to characterize advantage provided by coherence and contextuality in quantum information protocols. They used this methodology as an example for the task of quantum interrogation, introduced by the paradigmatic bomb-testing interferometric experiment, showing contextual quantum advantage for such a task… read more. Open Access TECHNICAL ARTICLE