Trotter Product Formulae for $$*$$-Automorphisms of Quantum Lattice Systems
Trotter Product Formulae for $$*$$-Automorphisms of Quantum Lattice Systems
We consider the dynamics t↦τt of an infinite quantum lattice system that is generated by a local interaction. If the interaction decomposes into a finite number of terms that are themselves local interactions, we show that τt can be efficiently approximated by a product of n automorphisms, each of them …