Macroscopic Thermalization for Highly Degenerate Hamiltonians After Slight Perturbation

Barbara Roos, Shoki Sugimoto, Stefan Teufel +2

We say of an isolated macroscopic quantum system in a pure state $\psi$ that it is in macroscopic thermal equilibrium (MATE) if $\psi$ lies in or close to a suitable subspace $\mathcal{H…