4 papers
Universal bounds for quantum metrology in the presence of correlated noise
Stanislaw Kurdzialek, Francesco Albarelli, Rafal Demkowicz-Dobrzanski
We derive fundamental bounds for general quantum metrological models involving both temporal or spatial correlations (mathematically described by quantum combs), which may be effec…
Simultaneous optical phase and loss estimation revisited: measurement and probe incompatibility
Matheus Eiji Ohno Bezerra, Francesco Albarelli, Rafal Demkowicz-Dobrzanski
Quantum multiparameter metrology is hindered by incompatibility issues, such as finding a single probe state (probe incompatibility) and a single measurement (measurement incompati…
Quantum metrology using quantum combs and tensor network formalism
Stanislaw Kurdzialek, Piotr Dulian, Joanna Majsak +2
We develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channe…
Universal time scalings of sensitivity in Markovian quantum metrology
Arpan Das, Wojciech Gorecki, Rafal Demkowicz-Dobrzanski
Assuming Markovian time evolution of a quantum sensing system, we study the general characterization of the optimal sensitivity scalings with time, under most general quantum contr…