Schrödinger equation

This equation gives how the quantum state of a non-relativistic system changes with time, governed by its Hamiltonian. It is the basic dynamical law of quantum mechanics and is used whenever a quantum system's evolution is studied.

\mathrm{i}\hbar \frac{d}{dt} |\Psi(t)\rangle = \hat{H} |\Psi(t)\rangle

What the symbols mean

imaginary unit, \(\sqrt{-1}\)
reduced Planck constant (J·s)
time (s)
quantum state vector of the system at time \(t\)
Hamiltonian operator (energy operator) of the system

About this formula

  • FieldPhysics
  • TopicQuantum mechanics
  • LevelUniversity
  • Also calledSchroedinger equation, Schrödinger wave equation, time-dependent Schrödinger equation, quantum state evolution equation, Hamiltonian time evolution equation, quantum mechanics wave equation
  • SourceWikidata Q165498

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