Abstract:
The diagonal elements of the density matrix of a dynamical subsystem consisting of a highly excited harmonic oscillator that interacts with crystal vibrations are found. The result obtained is asymptotically exact. Various limiting cases are considered and, in particular, a rigorous criterion for applicability of the balance equations for the considered problem is established.
Citation:
B. I. Makshantsev, V. M. Finkel'berg, “Damping of a highly excited harmonic oscillator in a crystal”, TMF, 35:2 (1978), 224–232; Theoret. and Math. Phys., 35:2 (1978), 423–428