A key difficulty that arises from real event data is imprecision in the recording of time-stamps. In many cases, retaining times with a high precision expensive due to sheer volume activity. Combined practical limits on accuracy measurements, binned common. order use point processes model such data, tools for handling parameter estimation are essential. Here we consider Hawkes process, type sel...

Quantum Fisher information is the principal tool used to give ultimate precision bound on estimation of parameters for quantum channels. In this work, we present analytical expressions with three noisy channels case where are in superposition causal orders. We found that increases as number orders certain combinations. also show combinations attain higher bounds than others same Based our resul...