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Certifying experimental errors in quantum experiments

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arxiv 1204.3644 v2 pith:B6HC64KP submitted 2012-04-16 quant-ph

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keywords errorsquantumdataexperimentexperimentalexperimentstestsamount
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When experimental errors are ignored in an experiment, the subsequent analysis of its results becomes questionable. We develop tests to detect systematic errors in quantum experiments where only a finite amount of data is recorded and apply these tests to tomographic data taken in an ion trap experiment. We put particular emphasis on quantum state tomography and present three detection methods: the first two employ linear inequalities while the third is based on the generalized likelihood ratio.

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