Dynamics of the Measurement of Nuclear Spins in a Solid-State Quantum Computer

Details Dynamics of the Measurement of Nuclear Spins in a Solid-State Quantum Computer Dynamics of the Measurement of Nuclear Spins in a Solid-State Quantum Computer

1999-05-13

arxiv.org/abs/cond-mat/9905200v1

Physics

Condensed Matter

5 pages, 8 figures

Scientific paper

We study numerically the process of nuclear spin measurement in a solid-state quantum computer of the type proposed by Kane by modeling the quantum dynamics of two coupled nuclear spins on $^{31}$P donors implanted in silicon. We estimate the minimum measurement time necessary for the reliable transfer of quantum information from the nuclear spin subsystem to the electronic subsystem. We also calculate the probability of error for typical values of the external noise.

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