Decoherence and dephasing in spin-based solid state quantum computers
Xuedong Hu, Rogerio de Sousa, S. Das Sarma
Abstract
We discuss the operational definition of decoherence in various solid state systems. In particular, we review, in the context of spin-based solid state quantum computation, the introduction of T1 and T2 to describe decoherence in a two level system. We provide a perspective on recent experiments involving the manipulation of spin coherence in semiconductors, and discuss specific decoherence and dephasing issues in electron spin-based quantum dot quantum computer architectures.
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