Dynamical aspects of phonon-phonon coupling in collective mode damping

We present an extension of the Quantal Brownian Motion (QBM) model of vibration damping that incorporates phonon-phonon or phonon-(two-particle-two-hole) interactions as sources of dissipative evolution of the excited mode. Starting from the Schrödinger-on Neumann equation of motion, a reduction pro...

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Detalles Bibliográficos
Autores principales: Cataldo, H.M., Hernández, E.S., Dorso, C.O.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03784371_v142_n1-3_p498_Cataldo
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