Interaction picture as any other operator. In particular, let and be the density matrices in the interaction picture and the Schrödinger picture respectively. If there is probability to be in the physical state |"ψ"〉, then Transforming the Schrödinger equation into the interaction picture gives which states that in the interaction picture, a quantum state is evolved by the interaction part of the Hamiltonian as expressed in the interaction picture. If the operator "A" is time-independent (i.e., does not have "explicit time dependence"; see above), then the corresponding time evolution for "A"("t") is given by In the interaction picture the operators evolve in
Minimum capital must be paid up (of the nominal amount and of any premium). Minimum capital Minimum capital is a concept used in corporate law and banking regulation to stipulate what assets the organisation must hold as a minimum requirement. The purpose of minimum capital in corporate law is to ensure that in the event of insolvency or financial instability, the corporation has a sufficient equity base to satisfy the claims of creditors. All public companies within the European Union are required to hold at least €25.000 in capital, although many countries go above this minimum requirement. The requirement is e.g. £50.000