Optimal measurements for simultaneous quantum estimation of multiple phases

In this letter we tackle one of the key difficulties of multiphase estimation: obtaining a measurement which saturates the fundamental sensitivity bounds.. Enjoy the reading…

Optimal measurements for simultaneous quantum estimation of multiple phases. L.Pezzè, M.A. Ciampini, N. Spagnolo, P.C. Humphreys, A. Datta, I.A. Walmsley, M. Barbieri, F. Sciarrino, A. Smerzi [arXiv:1705.03687]