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Figure 2 - The Reflected Entanglement Spectrum for Free Fermions

Eigenvalues λ m of the correlation kernel obtained by numerical method (dots) versus the spectrum (4.21) of a thermal partition function with appropriate temperature (solid lines) for various x → 1. Only the first few eigenvalues are shown. λ m are symmetric across m = 1/2 line. Although not shown in this figure, the discrepancy between analytics and numerics is well resolved by including the second order corrections, see Figure 5.
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