SU(2) × SU(2)-invariant scattering matrix of the Hubbard model
We consider the one-dimensional half-filled Hubbard model. We show that the excitation spectrum is given by the scattering states of four elementary excitations, which form the fundamental representation of SU(2) × SU(2). We determine the exact two-particle scattering matrix, which is a solution of...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1994
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