---
_id: '8726'
abstract:
- lang: eng
  text: Several realistic spin-orbital models for transition metal oxides go beyond
    the classical expectations and could be understood only by employing the quantum
    entanglement. Experiments on these materials confirm that spin-orbital entanglement
    has measurable consequences. Here, we capture the essential features of spin-orbital
    entanglement in complex quantum matter utilizing 1D spin-orbital model which accommodates
    SU(2)⊗SU(2) symmetric Kugel-Khomskii superexchange as well as the Ising on-site
    spin-orbit coupling. Building on the results obtained for full and effective models
    in the regime of strong spin-orbit coupling, we address the question whether the
    entanglement found on superexchange bonds always increases when the Ising spin-orbit
    coupling is added. We show that (i) quantum entanglement is amplified by strong
    spin-orbit coupling and, surprisingly, (ii) almost classical disentangled states
    are possible. We complete the latter case by analyzing how the entanglement existing
    for intermediate values of spin-orbit coupling can disappear for higher values
    of this coupling.
article_number: '53'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Dorota
  full_name: Gotfryd, Dorota
  last_name: Gotfryd
- first_name: Ekaterina
  full_name: Paerschke, Ekaterina
  id: 8275014E-6063-11E9-9B7F-6338E6697425
  last_name: Paerschke
  orcid: 0000-0003-0853-8182
- first_name: Krzysztof
  full_name: Wohlfeld, Krzysztof
  last_name: Wohlfeld
- first_name: Andrzej M.
  full_name: Oleś, Andrzej M.
  last_name: Oleś
citation:
  ama: Gotfryd D, Paerschke E, Wohlfeld K, Oleś AM. Evolution of spin-orbital entanglement
    with increasing ising spin-orbit coupling. <i>Condensed Matter</i>. 2020;5(3).
    doi:<a href="https://doi.org/10.3390/condmat5030053">10.3390/condmat5030053</a>
  apa: Gotfryd, D., Paerschke, E., Wohlfeld, K., &#38; Oleś, A. M. (2020). Evolution
    of spin-orbital entanglement with increasing ising spin-orbit coupling. <i>Condensed
    Matter</i>. MDPI. <a href="https://doi.org/10.3390/condmat5030053">https://doi.org/10.3390/condmat5030053</a>
  chicago: Gotfryd, Dorota, Ekaterina Paerschke, Krzysztof Wohlfeld, and Andrzej M.
    Oleś. “Evolution of Spin-Orbital Entanglement with Increasing Ising Spin-Orbit
    Coupling.” <i>Condensed Matter</i>. MDPI, 2020. <a href="https://doi.org/10.3390/condmat5030053">https://doi.org/10.3390/condmat5030053</a>.
  ieee: D. Gotfryd, E. Paerschke, K. Wohlfeld, and A. M. Oleś, “Evolution of spin-orbital
    entanglement with increasing ising spin-orbit coupling,” <i>Condensed Matter</i>,
    vol. 5, no. 3. MDPI, 2020.
  ista: Gotfryd D, Paerschke E, Wohlfeld K, Oleś AM. 2020. Evolution of spin-orbital
    entanglement with increasing ising spin-orbit coupling. Condensed Matter. 5(3),
    53.
  mla: Gotfryd, Dorota, et al. “Evolution of Spin-Orbital Entanglement with Increasing
    Ising Spin-Orbit Coupling.” <i>Condensed Matter</i>, vol. 5, no. 3, 53, MDPI,
    2020, doi:<a href="https://doi.org/10.3390/condmat5030053">10.3390/condmat5030053</a>.
  short: D. Gotfryd, E. Paerschke, K. Wohlfeld, A.M. Oleś, Condensed Matter 5 (2020).
date_created: 2020-11-06T07:21:00Z
date_published: 2020-08-26T00:00:00Z
date_updated: 2021-01-12T08:20:46Z
day: '26'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.3390/condmat5030053
ec_funded: 1
external_id:
  arxiv:
  - '2009.11773'
file:
- access_level: open_access
  checksum: a57a698ff99a11b6665bafd1bac7afbc
  content_type: application/pdf
  creator: dernst
  date_created: 2020-11-06T07:24:40Z
  date_updated: 2020-11-06T07:24:40Z
  file_id: '8727'
  file_name: 2020_CondensedMatter_Gotfryd.pdf
  file_size: 768336
  relation: main_file
  success: 1
file_date_updated: 2020-11-06T07:24:40Z
has_accepted_license: '1'
intvolume: '         5'
issue: '3'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Condensed Matter
publication_identifier:
  issn:
  - 2410-3896
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: Evolution of spin-orbital entanglement with increasing ising spin-orbit coupling
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2020'
...