Characterizing resources for multiparameter estimation of SU(2) and SU(1,1) unitaries

Shaowei Du, Shuheng Liu, Frank E. S. Steinhoff +1

We analyze the task of estimating a multi-parameter unitary belonging to the $SU(2)$ or $SU(1,1)$ groups, in a two-bosonic-mode scenario and investigate the scaling of the precisio…