dc.contributor.author
Eisler, Viktor
dc.contributor.author
Giulio, Giuseppe Di
dc.contributor.author
Tonni, Erik
dc.contributor.author
Peschel, Ingo
dc.date.accessioned
2020-10-20T11:22:19Z
dc.date.available
2020-10-20T11:22:19Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/28580
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-28329
dc.description.abstract
We study the entanglement Hamiltonian for finite intervals in infinite quantum chains for two different free-particle systems: coupled harmonic oscillators and fermionic hopping models with dimerization. Working in the ground state, the entanglement Hamiltonian describes again free bosons or fermions and is obtained from the correlation functions via high-precision numerics for up to several hundred sites. Far away from criticality, the dominant on-site and nearest-neighbour terms have triangular profiles that can be understood from the analytical results for a half-infinite interval. Near criticality, the longer-range couplings, although small, lead to a more complex picture. A comparison between the exact spectra and entanglement entropies and those resulting from the dominant terms in the Hamiltonian is also reported.
en
dc.rights.uri
http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen
dc.subject
entanglement in extended quantum systems
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Entanglement Hamiltonians for non-criticalquantum chains
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
103102
dcterms.bibliographicCitation.doi
10.1088/1742-5468/abb4da
dcterms.bibliographicCitation.journaltitle
Journal of Statistical Mechanics: Theory and Experiment
dcterms.bibliographicCitation.volume
2020
dcterms.bibliographicCitation.url
https://doi.org/10.1088/1742-5468/abb4da
dcterms.rightsHolder.url
https://publishingsupport.iopscience.iop.org/preprint-pre-publication-policy/
refubium.affiliation
Physik
refubium.note.author
This is the version of the article before peer review or editing, as submitted by an author to Journal of Statistical Mechanics: Theory and Experiment. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1742-5468/abb4da
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1742-5468
dcterms.isPartOf.zdb
2138944-5