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EnglishWe review the approach of generalised permutaror to produce a class of integrable quantum Hamiltonians, as well as the technique of Sutherland species (SS) to map a subclass of it into solvable spinless fermions models. In particular, we apply the above scheme to construct integrable interacting electron Hamiltonians: first we review the extended Hubbard case, discussing both ground state and thermodynamics; then we pass to constrained fermion models, generating 56 integrable cases, among which both supersymmetric t-J model and infinite U Hubbard model are obtained, as well as other physically interesting cases, such as a particular t-V model. For the latter we describe how the complete spectrum can be gained by means of SS technique. Finally we speculate about possible applications to spin S models.
Recent results on integrable electronic models / Anfossi A.; Dolcini F.; Montorsi A.. - STAMPA. - 5(2004), pp. 513-534.
| Titolo: | Recent results on integrable electronic models | |
| Autori: | ||
| Data di pubblicazione: | 2004 | |
| Titolo del libro: | Recent Research Developments in Physics | |
| Abstract: | We review the approach of generalised permutaror to produce a class of integrable quantum Hamilto...nians, as well as the technique of Sutherland species (SS) to map a subclass of it into solvable spinless fermions models. In particular, we apply the above scheme to construct integrable interacting electron Hamiltonians: first we review the extended Hubbard case, discussing both ground state and thermodynamics; then we pass to constrained fermion models, generating 56 integrable cases, among which both supersymmetric t-J model and infinite U Hubbard model are obtained, as well as other physically interesting cases, such as a particular t-V model. For the latter we describe how the complete spectrum can be gained by means of SS technique. Finally we speculate about possible applications to spin S models. | |
| ISBN: | 81-7895-126-6 | |
| Appare nelle tipologie: | 2.1 Contributo in volume (Capitolo o Saggio) |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Anfossi-Dolcini-Montorsi_Recent ResDevelPhys_5_513_2004 (TransworldResearchNetwork).pdf | Anfossi-Dolcini-Montorsi_Recent ResDevelPhys_5_513_2004 (TransworldResearchNetwork) | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2373124
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