At the many-body localization transition in a 20-site spin chain, logarithmic negativity decays exponentially with the ratio of block separation to block size, while mutual information decays as a power law, independent of block size.
En- tanglement probe of two-impurity kondo physics in a spin chain,
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Scale Invariant Entanglement Negativity at the Many-Body Localization Transition
At the many-body localization transition in a 20-site spin chain, logarithmic negativity decays exponentially with the ratio of block separation to block size, while mutual information decays as a power law, independent of block size.