2018
DOI: 10.1142/s0217732318500852
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Single-particle entanglement of the entanglement Hamiltonian eigenmodes

Abstract: Single-particle entanglement entropy (SPEE) is calculated for entanglement Hamiltonian eigenmode in a one-dimensional free fermion model that undergoes a delocalized-localized phase transition. In this numerical study, we show that SPEE of entanglement Hamiltonian eigen-mode has the same behavior as EPEE of Hamiltonian eigen-mode at the Fermi level: as we go from delocalized phase toward localized phase, SPEE of both modes decreases in the same manner. Furthermore, fluctuations of SPEE of entanglement Hamilton… Show more

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“…One special eigenvector of the U matrix, which corresponds to the ζ closes to 1/2, has proven to be localized (extended) in the localized (delocalized) phase. 28,29,49,50 Here, we show that all eigenvectors of EH has this property. To verify it numerically, we plot the U matrix composed of the EH eigenvectors for the PRBM model in Fig.…”
Section: Entanglement Hamiltonian In Delocalized-localized Phasesmentioning
confidence: 53%
“…One special eigenvector of the U matrix, which corresponds to the ζ closes to 1/2, has proven to be localized (extended) in the localized (delocalized) phase. 28,29,49,50 Here, we show that all eigenvectors of EH has this property. To verify it numerically, we plot the U matrix composed of the EH eigenvectors for the PRBM model in Fig.…”
Section: Entanglement Hamiltonian In Delocalized-localized Phasesmentioning
confidence: 53%