Abstract
The "valence-bond" ground states for extended Heisenberg models discussed by Affleck et al. are shown to be of a Jastrow form. We discuss a striking analogy between these models and the "truncated pseudopotential" approach to the fractional quantum Hall effect. The valence-bond states are in analogy to the Laughlin ground state, and the magnon spectrum is deduced by use of a single-mode approximation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 531-534 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 60 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1988 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy