- Journal Article
We describe a method for precise estimation of the polarization of a mesoscopic spin ensemble by using its coupling to a single two-level system. Our approach requires a minimal number of measurements on the two-level system for a given measurement precision. We consider the application of this method to the case of nuclear-spin ensemble defined by a single electron-charged quantum dot: we show that decreasing the electron spin dephasing due to nuclei and increasing the fidelity of nuclear-spin-based quantum memory could be within the reach of present day experiments. Show more
Journal / seriesPhysical Review A
Pages / Article No.
PublisherAmerican Physical Society
Organisational unit03636 - Imamoglu, Atac / Imamoglu, Atac
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