Erratum: Cramér-Rao bound for time-continuous measurements in linear Gaussian quantum systems [Phys. Rev. A 95, 012116 (2017)]

Figure 1

FI $F_t\left(\chi \right)$ for continuous homodyne and heterodyne detection as a function of time and for $\chi =-0.2\kappa$ (numerical evaluation with 2000 trajectories). The green dotted line: homodyne detection of quadrature $\widehat{x}$; the red dashed line: homodyne detection of quadrature $\widehat{p}$; the blue solid line: heterodyne detection.

Figure 2

FI $F_t\left(\lambda \right)$ for continuous homodyne detection of the cavity field quadrature ${\widehat{p}}_c$ as a function of time and for different values of the cavity decay rate: $\kappa ={\omega }_m/2$: the red solid line; $\kappa ={\omega }_m/10$: the green dashed line; $\kappa ={\omega }_m/20$: the blue dotted line (the other parameters are chosen as $g={\omega }_m/2,\gamma ={\omega }_m/3$, and $\eta =1)$.