Bethe ansatz data for the open $D_3^{(2)}$ spin chain

Finite size Bethe ansatz data for the RG trajectories of low energy states of the D_3^(2) spin chain with open boundary conditions.

For details see: H. Frahm, S. Gehrmann, R. I. Nepomechie, Ana L. Retore (2025), "Quantum-group-invariant $D^{(2)}_{n+1}$ models: Bethe ansatz and finite-size spectrum": J. High Energy Phys. **2025**(12) (2025) 117 [arXiv:2509.00610].

###Boundary condition (0,0)
Symmetry is U_q(B_2) + Z2.

###Boundary condition (0,1)
Symmetry is U_q(B_1) x U_q(B_1) + Z2 + self-duality. The partition function factorizes in two parts, each in the universality class of the antiferromagnetic Potts model with free ends.

###Boundary condition (1,0)
Symmetry is U_q(B_2) + Z2.

###Boundary condition (1,1)
Symmetry is U_q(B_1) x U_q(B_1) + Z2 + self-duality + "bonus symmetry". The analyzed low energy states fall into three categories:

* class A: the conformal weights can be decomposed into contributions of an antiferromagnetic Potts model with free ends and of the black hole CFT (continuous part and emerging discrete states)
* class B: one singular root - discrete states
* class C: two singular roots - discrete states with conformal weight linear in gamma (two Potts models as for BC (0,1))