Abstract
The antiferromagnetic Heisenberg spin chain with N spins has a sector with N = odd, in which the number of excitations is odd. In particular, there is a state with a single one-particle excitation. We exploit this fact to give a simplified derivation of the boundary S matrix for the open antiferromagnetic spin-1/2 Heisenberg spin chain with diagonal boundary magnetic fields.
Original language | English (US) |
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Pages (from-to) | L507-L512 |
Journal | Journal of Physics A: Mathematical and General |
Volume | 30 |
Issue number | 15 |
DOIs | |
State | Published - Aug 7 1997 |
Externally published | Yes |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Physics and Astronomy(all)