Abstract
Q-systems provide an efficient way of solving Bethe equations. We formulate here Q-systems for both the isotropic and anisotropic open Heisenberg quantum spin-1/2 chains with diagonal boundary magnetic fields. We check these Q-systems using novel discrete Wronskian-type formulas (relating the fundamental Q-function and its dual) that involve the boundary parameters.
| Original language | English (US) |
|---|---|
| Article number | 294001 |
| Journal | Journal of Physics A: Mathematical and Theoretical |
| Volume | 53 |
| Issue number | 29 |
| DOIs | |
| State | Published - Jul 24 2020 |
Keywords
- Bethe ansatz
- Wronskian
- boundary integrability
- duality
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Modeling and Simulation
- Mathematical Physics
- Physics and Astronomy(all)