Nota de FísicaPublicado
Algebraic Bethe Ansatz for a Spin-1/2 Quantum Linear Chain with Competing Interactions
Marco Aurélio do Rego Monteiro
2000
Dados da publicação
- Autores
- Marco Aurélio do Rego Monteiro
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 2000
- Descrição
- We propose a generalization of the formula that gives an integrable quantum one-dimensional spin Hamiltonian with nearest-neighbor interactions as a logarithmic derivative of a vertex model transfer matrix in order to include in this scheme more realistic integrable models. We compute exactly this generalized formula using the R-matrix of the XXX-model obtaining the Majumdar-Ghosh Hamiltonian plus a charge-like interaction term. We diagonalize this Hamiltonian using the Quantum Inverse Scattering Method and present the Bethe ansatz equations of the model.
- Ano
- 2000
- Número
- CBPF-N-070/00
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não