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arXiv · 0711.0957

Zero dimensional area law in a gapless fermion system

G. C. Levine·D. J. Miller
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Abstract

The entanglement entropy of a gapless fermion subsystem coupled to a gapless bulk by a "weak link" is considered. It is demonstrated numerically that each independent weak link contributes an entropy proportional to lnL, where L is linear dimension of the subsystem.

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G. C. Levine, D. J. Miller. 2008-04-13. Zero dimensional area law in a gapless fermion system. https://doi.org/10.1103/physrevb.77.205119

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