Femtosecond Evolution of Spatially Inhomogeneous Carrier Excitations Part I: Kinetic Approach View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2006

AUTHORS

M. Nedjalkov , T. Gurov , H. Kosina , D. Vasileska , V. Palankovski

ABSTRACT

The ultrafast evolution of optically excited carriers which propagate in a quantum wire and interact with three dimensional phonons is investigated. The equation, relevant to this physical problem, is derived by a first principle approach. The electron-phonon interaction is described on a quantum-kinetic level by the Levinson equation, but the evolution problem becomes inhomogeneous due to the spatial dependence of the initial condition. The initial carrier distribution is assumed Gaussian both in energy and space coordinates, an electric field can be applied along the wire. A stochastic method, described in Part II of the work, is used for solving the equation. The obtained simulation results characterize the space and energy dependence of the evolution in the zero field case. Quantum effects introduced by the early time electron-phonon interaction are analyzed. More... »

PAGES

149-156

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/11666806_15

DOI

http://dx.doi.org/10.1007/11666806_15

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1013605764


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