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Silicon-based spin and charge quantum computation
Belita Koiller, Xuedong Hu, R. B. Capaz +2
Silicon-based quantum-computer architectures have attracted attention because of their promise for scalability and their potential for synergetically utilizing the available resour…
Pseudospin and Quantum Computation in Semiconductor Nanostructures
V. W. Scarola, K. Park, S. Das Sarma
We review the theoretical aspects of pseudospin quantum computation using vertically coupled quantum dots in the quantum Hall regime. We discuss the robustness and addressability o…
Temperature and magnetization-dependent band-gap renormalization and optical many-body effects in diluted magnetic semiconductors
Ying Zhang, S. Das Sarma
We calculate the Coulomb interaction induced density, temperature and magnetization dependent many-body band-gap renormalization in a typical diluted magnetic semiconductor GaMnAs…
Exchange instabilities in electron systems: Bloch versus Stoner Ferromagnetism
Ying Zhang, S. Das Sarma
We show that 2D and 3D electron systems with the long-range Coulomb electron-electron interaction could develop ferromagnetic instabilities due to strong exchange effects at low de…