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arXiv · 1406.1668

Entanglement of several blocks in fermionic chains

F. Ares·J. G. Esteve·F. Falceto
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Abstract

In this paper we propose an expression for the entanglement entropy of several intervals in a stationary state of a free, translational invariant Hamiltonian in a fermionic chain. We check numerically the accuracy of our proposal and conjecture a new formula for the asymptotic behaviour of principal sub-matrices of a Toeplitz matrix.

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F. Ares, J. G. Esteve, F. Falceto. 2014-06-06. Entanglement of several blocks in fermionic chains. https://doi.org/10.1103/physreva.90.062321

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