Integrable Hamiltonian systems provide a rigorous framework in which complex dynamical behaviour can be understood through the existence of sufficient independent constants of motion. In particular, ...

Integrable systems occupy a unique niche in both classical and quantum physics. These systems are distinguished by the existence of sufficiently many conserved quantities – or invariants – that allow ...

Thermalization in classical systems can be well-understood by ergodicity. While ergodicity is absent for quantum systems, it is generally believed that the non-integrable quantum systems should ...