Quantum theory of spectral diffusion induced electron spin decoherence

Details Quantum theory of spectral diffusion induced electron spin decoherence Quantum theory of spectral diffusion induced electron spin decoherence

2005-01-20

arxiv.org/abs/cond-mat/0501503v3

Phys. Rev. B 72, 161306(R) (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 1 figure

Scientific paper

10.1103/PhysRevB.72.161306

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 provides a microscopic explanation for the Lorentzian diffusion of Hahn echoes without resorting to any phenomenological Markovian assumption. Our numerical results show remarkable agreement with recent electron spin echo experiments in phosphorus doped silicon.

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