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Laser Theory By Dr rer nat H Haken Professor of Theoretical Physics Institut
Quantum mechanical equations of the light field and the atoms without losses
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Appl approximation assume atomic dipole atomic operators average calculated cavity Chap classical coefficients coherent commutation relation constant correlation functions corresponding defined density matrix density matrix equation depend derived distribution function electric field expectation value expression factor fluctuating forces Fokker-Planck equation given Haken Hamiltonian heatbaths Heisenberg picture homogeneously broadened line inhomogeneously broadened Inserting integral intensity inversion Langevin equations laser action levels light field linear linewidth losses magnetic field maser mirrors mode X neglect noise nonlinear obtain occupation numbers occurs operators optical oscillator parameter phase photon number Phys Physik pulse pump quantum mechanical rate equations region resonator respect right hand side Risken rotating wave approximation Schrodinger side of Eq single atom single mode single-mode solution spin spontaneous emission stimulated emission theoretical theory threshold transition treated treatment two-level atoms variables vector velocity wave function Weidlich