Effective scatterings between electrons,excitons and trions |
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Authors: | M Combescot O Betbeder-Matibet |
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Institution: | (1) Department of Electrophysics, National Chiao Tung University, Hsinchu, 30010, Taiwan;(2) Department of Electronics Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan |
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Abstract: | The final goal of this paper is to derive the effective scattering ruling the time evolution of two semiconductor trions using
the many-body formalism for composite fermions we have just proposed. However, to understand the importance of the particle
composite nature, their bosonic/fermionic character and their overall charge, we also report on scatterings between free electrons,
excitons and trions. This leads us to identify the form factors associated to direct processes involving excitons and trions.
For transitions between ground states, these form factors reduce to zero and one respectively, in the small momentum transfer
limit. |
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Keywords: | |
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