skapelsesødelegelsesoperatorer
Skapelsesødelegelsesoperatorer, often abbreviated as creation-annihilation operators or C/A operators, are fundamental tools in quantum field theory and condensed matter physics. They represent the processes of creating or destroying a quantum of a field, such as a photon or an electron, at a specific point in spacetime. These operators act on quantum states, transforming them by adding or removing a particle.
In quantum mechanics, a system is described by a wavefunction or state vector. The creation operator, typically
For example, in quantum harmonic oscillator, the commutation relation $[a, a^\dagger] = 1$ leads to quantized energy