Figure 1 | npj Quantum Information

Figure 1

From: Entropy generation in Gaussian quantum transformations: applying the replica method to continuous-variable quantum information theory

Figure 1

Generated entropy as a linear function over a one-dimensional convex polytope. The von Neumann entropy S(z), function of the superposition parameter z, is pictured by a point belonging to a one-dimensional convex polytope. The two extremal points correspond to the entropies S0 and Sm, obtained by amplifying states |0 and |m, respectively.

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