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Two-particle states in the 2D Hubbard model |
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| Authors: | A. S. Saakyan |
| Affiliation: | (1) Armenian State Engineering University, 375009 Yerevan, Armenia |
| Abstract: | An exact solution is proposed for the problem of two singlet electrons (zero-spin bosons) interacting through a Hubbard-type potential on a bounded quadratic lattice. Exact two-particle states and the energy spectrum are constructed. |
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