A lower bound of quantum conditional mutual information
Lin Zhang, Junde Wu · Journal of Physics A Mathematical and Theoretical · 2014
In this paper, a lower bound of quantum conditional mutual information is obtained by employing the Peierls–Bogoliubov inequality and the Golden–Thompson inequality. Comparison with the bounds obtained by other researchers indicates that our result is independent of any measurements. It may give some new insights into squashed entanglement and perturbations of Markov chain states.