The paper is devoted to the spectral properties of the Glauber dynamics for the Ising model at high temperature 1/β. It is proven that for sufficiently small |β| there is an invariant subspace, in which the dynamics can be described as "a free multi-particle evolution", provided that the one-particle subspace is singled out. The proof is based upon the Haag-Ruelle scattering theory.
- Generator of the Glauber dynamics
- K-particle subspace
- Second quantization
- Wave operator