Analytical results for the entanglement Hamiltonian of a free-fermion chain
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Publication:4977719
DOI10.1088/1751-8121/AA76B5zbMATH Open1375.82018arXiv1703.08126OpenAlexW2606928335MaRDI QIDQ4977719
Author name not available (Why is that?)
Publication date: 17 August 2017
Published in: (Search for Journal in Brave)
Abstract: We study the ground-state entanglement Hamiltonian for an interval of sites in a free-fermion chain with arbitrary filling. By relating it to a commuting operator, we find explicit expressions for its matrix elements in the large- limit. The results agree with numerical calculations and show that deviations from the conformal prediction persist even for large systems.
Full work available at URL: https://arxiv.org/abs/1703.08126
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