Journal
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
Volume -, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1742-5468/aa6686
Keywords
form factors; quantum integrability (Bethe ansatz); Hubbard and related model
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Funding
- Grant Agency of the Czech Technical University in Prague [SGS15/215/OHK4/3T/14]
- Plenipotentiary of the Czech Republic at JINR, Dubna [01-3-1116]
- Russian Science Foundation [14-50-00005]
- Russian Science Foundation [14-50-00005] Funding Source: Russian Science Foundation
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We apply the nested algebraic Bethe ansatz to the models with gl(2|1) and gl(1|2) supersymmetry. We show that form factors of local operators in these models can be expressed in terms of the universal form factors. Our derivation is based on the use of the RTT-algebra only. It does not refer to any specific representation of this algebra. We obtain thus determinant representations for form factors of local operators in the cases where an explicit solution of the quantum inverse scattering problem is not known.
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