Distilling entanglement from cascades with partial “ Which Path ” ambiguity
نویسندگان
چکیده
We study cascades with partial which path ambiguity where entan-glement is distilled by spectral filtering. We develop a framework to calculate the amplitudes and phases of the density matrix. The results can be summarized in a two dimensional " phase diagram ". The theory is applied to the quantum tomography of the decay cascade of a biex-citon in a semiconductor quantum dot. The effect of inhomogeneous broadening due to spectral diffusion is also discussed.
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تاریخ انتشار 2008