Abstract
The surface energy of the antiferromagnetic spin-1/2 XXZ Heisenberg chain is derived in the region Delta (-1 from the known Bethe ansatz solution for free boundaries with surface fields. The result gives the surface energy of related models satisfying the Temperley-Lieb algebra. The models discussed are the quantum Q-state Potts chain and a family of isotropic spin-s chains including the spin-1 biquadratic model.
| Original language | English |
|---|---|
| Article number | 019 |
| Pages (from-to) | 761-771 |
| Number of pages | 11 |
| Journal | Journal of Physics A: General Physics |
| Volume | 23 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1990 |
| Externally published | Yes |