Integrable open spin chains with nonsymmetric R-matrices
L Mezincescu; R I Nepomechie; L Mezincescu; Dept. of Phys., Miami Univ., Coral Gables, FL, USA; R I Nepomechie; Dept. of Phys., Miami Univ., Coral Gables, FL, USA
Журнал:
Journal of Physics A: Mathematical and General
Дата:
1991-01-07
Аннотация:
The authors extend Sklyanin's formalism for constructing integrable open spin chains to the case of 'non-symmetric' (PT-invariant) R-matrices. They use this formalism to show that the Hamiltonian of an integrable open chain is invariant under gauge transformations of the R-matrix.
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