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Surmounting intrinsic quantum measurement uncertainties in Gaussian state tomography with quadrature squeezing

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Figure 3.  Surface plots of the performance ratio for various detector efficiencies. Here, Arthurs-Kelly  uncertainty is neglected in heterodyne detection
Figure 5.  Surface plots of the performance ratio for various detector efficiencies. The shapes of surfaces  are rather sensitive to the value of η.
Figure 7 shows that homodyne detection seems to give smaller errors for nearly circular states, while  for states of highly elongated Wigner functions, uncertainty suppression is observed with heterodyne  detection for almost all angles
Figure 7.  Plots of σ θ  (Blue) and Σ θ  (Red) as functions of θ.
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