Abstract
From the identification of the easy-plane XXZ spin chain as a 2>8 quantum sine-Gordon system, the nonlinear elementary excitations of the latter are identified as massless "twists" carrying the topological charge 28, and (depending on 2) twist-antitwist bound states.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2505-2508 |
| Number of pages | 4 |
| Journal | Physical Review B-Condensed Matter |
| Volume | 28 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1983 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
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