2006/09/05 by S. K. Saikin, Wang Yao, L. J. Sham · 2 citations
Physics and Astronomy · #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.75.125314
published as Phys. Rev. B 75, 125314 (2007) · 37 pages, 13 figures
arxiv created 2006/09/05 · arxiv updated 2011/11/09
We develop a theoretical model for transverse dynamics of a single electron spin interacting with a nuclear spin bath. The approach allows a simple diagrammatic representation and analytical expressions of different nuclear spin excitation processes contributing to electron spin decoherence and dynamical phase fluctuations. It accounts for nuclear spin dynamics beyond conventional pair correlation models. As an illustration of the theory, we evaluated the coherence dynamics of a P donor electron spin in a Si crystal.