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Sunipa Som

Numerical simulation of exciton dynamics in cuprous oxide at ultra low temperatures

Universität Rostock, 2015

https://doi.org/10.18453/rosdok_id00001585

Abstract: This thesis is a theoretical investigation of the relaxation behaviour of excitons in Cuprous Oxide at ultra low temperatures when the excitons are confined within a potential trap and also in a homogeneous system. Under the action of deformation potential phonon scattering only, Bose Einstein Condensation (BEC) occurs for all temperatures in the investigated range. In the case of Auger decay, we do not find at any temperature a BEC due to the heating of the exciton gas. In the case of elastic and phonon-scattering together BEC occurs in this case of 0.1 K.

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