Fig. 5: Comparison between NG entropy and entanglement entropy.
From: Complexity of quantum tomography from genuine non-Gaussian entanglement
The x-axis denotes the photon number, dashed lines indicate the entanglement entropy of the NOON state \(| \,{\mbox{NOON}}\,\left.\right\rangle\) and a superposition of two TMSV states \(| \,{\mbox{sTMSV}}\,\left.\right\rangle\), while the solid lines reflect their NG entropy.
