Introduction
摘要
Quantum mechanics is currently considered as one of the most fundamental theories of physics. It gradually appeared at the beginning of the twentieth century, following a number of failures in classical physics. In 1900, Max PlanckPlanck, Max (1858–1947) discovered the constant that bears his namePlanck’s constant and introduced the concept of a quantum of energyQuantum of energy. Twenty-five years passed before the construction by Erwin SchrödingerSchrödinger, Erwin (1887–1961) of the equation at the basis of quantum theory.