Spin-boson model

J Gea-Banacloche, Spin-Boson Hamiltonian

M Thoss, H Wang, W H Miller, Self-consistent hybrid approach for complex systems: Application to the spin-boson model with Debye spectral density, JCP 115, 2991 (2001)

Rabi model

D Braak, Integrability of the Rabi model, PRL 107, 100401 (2011)