Ward identities for the Anderson impurity model: derivation via functional methods and the exact renormalization group
| dc.contributor.author | Ferraz Filho, Álvaro | |
| dc.contributor.author | Kopietz, Peter | |
| dc.contributor.author | Bartosch, Lorenz | |
| dc.contributor.author | Costa, Lúcio | |
| dc.contributor.author | Isidori, Aldo | |
| dc.date.accessioned | 2020-05-26T01:02:26Z | |
| dc.date.available | 2020-05-26T01:02:26Z | |
| dc.date.issued | 2010-08-27 | |
| dc.description.resumo | Using functional methods and the exact renormalization group we derive Ward identities for the Anderson impurity model. In particular, we present a nonperturbative proof of the Yamada–Yosida identities relating certain coefficients in the low-energy expansion of the self-energy to the thermodynamic particle number and spin susceptibilities of the impurity. Our proof underlines the relation of the Yamada–Yosida identities to the U(1) × U(1) symmetry associated with the particle number and spin conservation in a magnetic field. PACS numbers: 72.15.Qm, 71.27.+q, 71.10.Pm | pt_BR |
| dc.identifier.citation | KOPIETZ, Peter; BARTOSCH, Lorenz; COSTA, Lucio; ISIDORI, Aldo; FERRAZ FILHO, Alvaro. Ward identities for the Anderson impurity model: derivation via functional methods and the exact renormalization group: derivation via functional methods and the exact renormalization group. Journal Of Physics A: Mathematical and Theoretical, [s. l.], v. 43, n. 38, p. 385004-385015, 27 ago. 2010. ISSN 1751-8121 versão online. DOI http://dx.doi.org/10.1088/1751-8113/43/38/385004. Disponível em: https://iopscience.iop.org/article/10.1088/1751-8113/43/38/385004. Acesso em: 25 maio 2020. | pt_BR |
| dc.identifier.doi | 10.1088/1751-8113/43/38/385004 | |
| dc.identifier.issn | 1751-8113 (print), 1751-8121 (online) | |
| dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29061 | |
| dc.language | en | pt_BR |
| dc.publisher | IOP Publishing | pt_BR |
| dc.subject | Ward identities | pt_BR |
| dc.subject | Anderson impurity model | pt_BR |
| dc.subject | Derivation via functional methods | pt_BR |
| dc.subject | Renormalization | pt_BR |
| dc.title | Ward identities for the Anderson impurity model: derivation via functional methods and the exact renormalization group | pt_BR |
| dc.type | article | pt_BR |
Arquivos
Licença do Pacote
1 - 1 de 1
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.45 KB
- Formato:
- Item-specific license agreed upon to submission
Nenhuma Miniatura disponível