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cond-mat.mes-hall2005
Quantum theory for electron spin decoherence induced by nuclear spin dynamics in semiconductor quantum computer architectures: Spectral diffusion of localized electron spins in the nuclear solid-state environment
W. M. Witzel, S. Das Sarma
We consider the decoherence of a single localized electron spin due to its coupling to the lattice nuclear spin bath in a semiconductor quantum computer architecture. In the presen…
cond-mat.mes-hall2005
Quantum theory of spectral diffusion induced electron spin decoherence
W. M. Witzel, Rogerio de Sousa, S. Das Sarma
A quantum cluster expansion method is developed for the problem of localized electron spin decoherence due to dipolar fluctuations of lattice nuclear spins. At the lowest order it…