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arXiv · 0809.2376

Quantum State Tomography: 'the best' is the enemy of 'good enough'

Max S. Kaznady·Daniel F. V. James
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Abstract

In this paper, we examine a variety of strategies for numerical quantum-state estimation from data of the sort commonly measured in experiments involving quantum state tomography. We find that, in some important circumstances, an elaborate and time-consuming numerical optimization to obtain 'the best' density matrix corresponding to a given data set is not necessary, and that cruder, faster numerical techniques may well be 'good enough'.

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Max S. Kaznady, Daniel F. V. James. 2008-09-14. Quantum State Tomography: 'the best' is the enemy of 'good enough'. https://arxiv.org/abs/0809.2376

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