- #1
LagrangeEuler
- 717
- 20
I am confused. In harmonic oscillator problem in quantum mechanics eigenstates of operator ##\hat{a}## are called coherent states. So we practically get Gaussian. In problem of quantum linear harmonic oscillator we have phonons ##|n \rangle##. In case of laser we have photons ##|n \rangle##. Could you explain me what kind of coherence do we have in ground state of harmonic oscillator?