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  2. Schrödinger equation - Wikipedia

    en.wikipedia.org/wiki/Schrödinger_equation

    The time-dependent Schrödinger equation described above predicts that wave functions can form standing waves, called stationary states. These states are particularly important as their individual study later simplifies the task of solving the time-dependent Schrödinger equation for any state. Stationary states can also be described by a ...

  3. Unitary transformation (quantum mechanics) - Wikipedia

    en.wikipedia.org/wiki/Unitary_transformation...

    In quantum mechanics, the Schrödinger equation describes how a system changes with time. It does this by relating changes in the state of the system to the energy in the system (given by an operator called the Hamiltonian). Therefore, once the Hamiltonian is known, the time dynamics are in principle known.

  4. Quantum harmonic oscillator - Wikipedia

    en.wikipedia.org/wiki/Quantum_harmonic_oscillator

    Schrödinger 3D spherical harmonic orbital solutions in 2D density plots; the Mathematica source code that used for generating the plots is at the top The Schrödinger equation for a particle in a spherically-symmetric three-dimensional harmonic oscillator can be solved explicitly by separation of variables.

  5. List of equations in quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    2.1.2 Non-relativistic time-dependent Schrödinger equation. 2.2 Photoemission. ... (1 particle in 3d) ... The Cambridge Handbook of Physics Formulas. Cambridge ...

  6. List of quantum-mechanical systems with analytical solutions

    en.wikipedia.org/wiki/List_of_quantum-mechanical...

    which is an eigenvalue equation. Very often, only numerical solutions to the Schrödinger equation can be found for a given physical system and its associated potential energy. However, there exists a subset of physical systems for which the form of the eigenfunctions and their associated energies, or eigenvalues, can be found.

  7. Energy operator - Wikipedia

    en.wikipedia.org/wiki/Energy_operator

    The Schrödinger equation describes the space- and time-dependence of the slow changing (non-relativistic) wave function of a quantum system. The solution of the Schrödinger equation for a bound system is discrete (a set of permitted states, each characterized by an energy level ) which results in the concept of quanta .

  8. Dynamical pictures - Wikipedia

    en.wikipedia.org/wiki/Dynamical_pictures

    Equations that apply in one picture do not necessarily hold in the others, because time-dependent unitary transformations relate operators in one picture to the analogous operators in the others. Not all textbooks and articles make explicit which picture each operator comes from, which can lead to confusion.

  9. Stationary state - Wikipedia

    en.wikipedia.org/wiki/Stationary_state

    This is an eigenvalue equation: ^ is a linear operator on a vector space, | is an eigenvector of ^, and is its eigenvalue.. If a stationary state | is plugged into the time-dependent Schrödinger equation, the result is [2] | = | .