Entanglement of several blocks in fermionic chains
Quantum Physics
2015-06-23 v1 Statistical Mechanics
Mathematical Physics
math.MP
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.
Keywords
Cite
@article{arxiv.1406.1668,
title = {Entanglement of several blocks in fermionic chains},
author = {F. Ares and J. G. Esteve and F. Falceto},
journal= {arXiv preprint arXiv:1406.1668},
year = {2015}
}
Comments
20 pages, 6 figures