W.-V. van Gerven Oei
- On form factors in nested Bethe Ansatz systems
- Journal of Physics. A, Mathematical and Theoretical
- Volume | Issue number
- 45 | 46
- Article number
- Number of pages
- Document type
- Faculty of Science (FNWI)
- Institute for Theoretical Physics Amsterdam (ITFA)
We investigate form factors of local operators in a multi-component quantum nonlinear Schrödinger model, a prototype theory solvable by the so-called nested Bethe Ansatz. We determine the analytic properties of the infinite volume form factors using the coordinate Bethe Ansatz solution and establish a connection with the finite volume matrix elements. In the two-component models we derive a set of recursion relations for the 'magnonic form factors', which are the matrix elements on the nested Bethe Ansatz states. In certain simple cases (involving states with only one spin-impurity), we obtain explicit solutions for the recursion relations.
- go to publisher's site
If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library, or send a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.