Entanglement entropy at infinite-randomness fixed points in higher dimensions.
نویسندگان
چکیده
The entanglement entropy of the two-dimensional random transverse Ising model is studied with a numerical implementation of the strong-disorder renormalization group. The asymptotic behavior of the entropy per surface area diverges at, and only at, the quantum phase transition that is governed by an infinite-randomness fixed point. Here we identify a double-logarithmic multiplicative correction to the area law for the entanglement entropy. This contrasts with the pure area law valid at the infinite-randomness fixed point in the diluted transverse Ising model in higher dimensions.
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ورودعنوان ژورنال:
- Physical review letters
دوره 99 14 شماره
صفحات -
تاریخ انتشار 2007