Tomographic entanglement indicators in frequency combs and Talbot carpets

Recent theoretical investigations on tomographic entanglement indicators have showcased the advantages of approach in context continuous-variable (CV), spin and hybrid quantum systems. Direct estimation using experimental data from IBM computing platform NMR experiments also been carried out earlier work. A similar investigation CV systems is necessary to fully assess utility our approach. In this paper, we highlight reported literature two systems, namely, entangled Talbot carpets biphoton frequency combs. We use indicator extent between a pair demonstrate that provides simpler more direct procedure compared one suggested experiment. establish tomograms corresponding combs carry clear signatures distinguish states.