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Exciton Transport Phenomena in GaAs Coupled Quantum Wells

By (author) Jason Leonard

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This thesis presents results crucial to the emerging field of indirect excitons. These specially designed quasiparticles give the unique opportunity to study fundamental properties of quantum degenerate Bose gases in semiconductors. Furthermore, indirect excitons allow for the creation of novel optoelectronic devices where excitons are used in place of electrons. Excitonic devices are explored for the development of advanced signal processing seamlessly coupled with optical communication. The thesis presents and describes the author's imaging experiments that led to the discovery of spin transport of excitons. The many firsts presented herein include the first studies of an excitonic conveyer, leading to the discovery of the dynamical localization-delocalization transition for excitons, and the first excitonic ramp and excitonic diode with no energy-dissipating voltage gradient.Â

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The Colonialist: The Vision of Cecil Rhodes

William Kelleher Storey
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528 pages
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This first comprehensive biography of Cecil Rhodes in a generation illuminates Rhodesâ€™s vision for the expansion of imperialism in southern Africa, connecting politics and industry to internal development, and examines how this fueled a lasting, white-dominated colonial society.

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Survive the AI Apocalypse: A guide for solutionists

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232 pages
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The Memory Collectors: A Novel

Dete Meserve
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320 pages

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The Coming Wave: AI, Power and Our Future

Mustafa Suleyman
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352 pages
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