Closed system: Difference between revisions

{{further|Quantum field theory}}This equation, called [[Schrödinger equation|Schrödinger's equation]], describes the behavior of an isolated or closed quantum system, that is, by definition, a system which does not interchange information (i.e. energy and/or matter) with another system. So if an isolated system is in some pure state |ψ(t) ∈ H at time t, where H denotes the Hilbert space of the system, the time evolution of this state (between two consecutive measurements).<ref>{{Cite book |last=Rivas |first=Ángel |title=Open Quantum Systems |lastlast2=RivasHuelga |firstfirst2=ÁngelSusana F. |last2author-link2=Susana F. Huelga|first2=Susana |date=October 2011 |publisher=Springer-Verlag |isbn=978-3-642-23354-8| |location=Berlin Heidelberg}}</ref>