Engineering QND measurements for continuous variable quantum information processing
M.G.A. Paris · Fortschritte der Physik · 2003
Abstract A novel scheme to realize the whole class of quantum nondemolition (QND) measurements of a field quadrature is suggested. The setup requires linear optical components and squeezers, and allows optimal QND measurements of quadratures, which minimize the information gain versus state disturbance trade‐off.