Operator (physics)
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In mathematical formulations of quantum mechanics, an operator is a linear transformation from a Hilbert space to itself. An observable is a self-adjoint operator. By extension, operator is also used to refer to an element of a C*-algebra. For the justification of this usage, see Gelfand-Naimark theorem
List of quantum mechanical operators
- Position operator
- Momentum operator
- Spin operator
- Angular momentum operator
- Acceleration operator
- Annihilation operator
- Creation operator
- Evolution operator
- Hamiltonian operator
- Kinetic energy operator
- Ladder operator