Finite-size correction and bulk hole-excitations for special case of an open XXZ chain with nondiagonal boundary terms at roots of unity

Abstract

Using our solution for the open spin-1/2 XXZ quantum spin chain with N spins and two arbitrary boundary parameters at roots of unity, the central charge and the conformal dimensions for bulk hole excitations are derived from the 1/N correction to the energy (Casimir energy).

21 pages, LaTeX, v2: minor changes and 3 references added

References in corpus (2)

• Exact solutions and elementary excitations in the XXZ spin chain with unparallel boundary fields
• Finite size effects in the spin-1 XXZ and supersymmetric sine-Gordon models with Dirichlet boundary conditions

Cited by in corpus (1)

• Boundary S matrix of an open XXZ spin chain with nondiagonal boundary terms