Electric polarization near vortices in the extended Kitaev model
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866916185220579328 |
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| author | Freitas, Lucas R. D. Bauer, Tim Egger, Reinhold Pereira, Rodrigo G. |
| author_facet | Freitas, Lucas R. D. Bauer, Tim Egger, Reinhold Pereira, Rodrigo G. |
| contents | We formulate a Majorana mean-field theory for the extended $JKΓ$ Kitaev model in a magnetic Zeeman field of arbitrary direction, and apply it for studying spatially inhomogeneous states harboring vortices. This mean-field theory is exact in the pure Kitaev limit and captures the essential physics throughout the Kitaev spin liquid phase. We determine the charge profile around vortices and the corresponding quadrupole tensor. The quadrupole-quadrupole interaction between distant vortices is shown to be either repulsive or attractive, depending on parameters. We predict that electrically biased scanning probe tips enable the creation of vortices at preselected positions. Our results open new perspectives for the electric manipulation of Ising anyons in Kitaev spin liquids. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_15750 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Electric polarization near vortices in the extended Kitaev model Freitas, Lucas R. D. Bauer, Tim Egger, Reinhold Pereira, Rodrigo G. Strongly Correlated Electrons We formulate a Majorana mean-field theory for the extended $JKΓ$ Kitaev model in a magnetic Zeeman field of arbitrary direction, and apply it for studying spatially inhomogeneous states harboring vortices. This mean-field theory is exact in the pure Kitaev limit and captures the essential physics throughout the Kitaev spin liquid phase. We determine the charge profile around vortices and the corresponding quadrupole tensor. The quadrupole-quadrupole interaction between distant vortices is shown to be either repulsive or attractive, depending on parameters. We predict that electrically biased scanning probe tips enable the creation of vortices at preselected positions. Our results open new perspectives for the electric manipulation of Ising anyons in Kitaev spin liquids. |
| title | Electric polarization near vortices in the extended Kitaev model |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2311.15750 |