Gaussian interferometric power as a measure of continuous-variable non-Markovianity
Gaussian interferometric power as a measure of continuous-variable non-Markovianity
We investigate the non-Markovianity of continuous-variable Gaussian quantum channels through the evolution of an operational metrological quantifier, namely, the Gaussian interferometric power, which captures the minimal precision that can be achieved using bipartite Gaussian probes in a black-box phase estimation setup, where the phase shift generator is a priori unknown. …