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Laser beam coherence

In recent papers we presented a wave model for closed conservative bounded systems, whose behavior is described by the Schrodinger equation. For such a system, the Schrodinger equation is equivalent to the wave equation. The analysis of the wave properties reveals an intrinsic coherence of the electron motions. We approximate the fundamental and metastable states of laser active medium by closed conservative bounded systems. We show that the coherence of the laser radiation could be explained by a transition between these coherent states.