Iterated Perturbation Theory for Mott Insulators in a Static Electric Field with Optical Phonons
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arXiv
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909148770205696 |
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| author | Mazzocchi, Tommaso Maria Arrigoni, Enrico |
| author_facet | Mazzocchi, Tommaso Maria Arrigoni, Enrico |
| contents | This manuscript aims to compare the so-called iterated perturbation theory (IPT) and auxiliary master equation approach (AMEA) impurity solvers for a Mott insulating system driven out of equilibrium by a static electric field. Electronic heat bath and optical phonons are employed as dissipation mechanism of the current-induced Joule heat that the excited electrons of the lattice experience as the result of the field's driving. Despite its simplicity, the IPT approach yields results which qualitatively are in good agreement with those obtained within the AMEA impurity solver, although fails to reproduce some correlation effects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_00617 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Iterated Perturbation Theory for Mott Insulators in a Static Electric Field with Optical Phonons Mazzocchi, Tommaso Maria Arrigoni, Enrico Strongly Correlated Electrons This manuscript aims to compare the so-called iterated perturbation theory (IPT) and auxiliary master equation approach (AMEA) impurity solvers for a Mott insulating system driven out of equilibrium by a static electric field. Electronic heat bath and optical phonons are employed as dissipation mechanism of the current-induced Joule heat that the excited electrons of the lattice experience as the result of the field's driving. Despite its simplicity, the IPT approach yields results which qualitatively are in good agreement with those obtained within the AMEA impurity solver, although fails to reproduce some correlation effects. |
| title | Iterated Perturbation Theory for Mott Insulators in a Static Electric Field with Optical Phonons |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2311.00617 |