Parity anomaly with impurities and the Pauli--Villars subtraction
Fuente:
arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866917703568064512 |
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| author | Holanda, Ozório Meyer, René Vassilevich, Dmitri |
| author_facet | Holanda, Ozório Meyer, René Vassilevich, Dmitri |
| contents | We calculate the anomalous part of the polarization tensor of Dirac fermions in $2+1$ dimensions in the presence of impurities described by the scattering rate $Γ$ for arbitrary external frequency and momenta. We consider two different versions of the Pauli--Villars subtractions and discuss their physical consequences. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_11972 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Parity anomaly with impurities and the Pauli--Villars subtraction Holanda, Ozório Meyer, René Vassilevich, Dmitri High Energy Physics - Theory Mesoscale and Nanoscale Physics We calculate the anomalous part of the polarization tensor of Dirac fermions in $2+1$ dimensions in the presence of impurities described by the scattering rate $Γ$ for arbitrary external frequency and momenta. We consider two different versions of the Pauli--Villars subtractions and discuss their physical consequences. |
| title | Parity anomaly with impurities and the Pauli--Villars subtraction |
| topic | High Energy Physics - Theory Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2305.11972 |