Statistical correlations between locally randomized measurements: A toolbox for probing entanglement in many-body quantum states

@article{Elben2019StatisticalCB,
  title={Statistical correlations between locally randomized measurements: A toolbox for probing entanglement in many-body quantum states},
  author={A. Elben and B. Vermersch and C. Roos and P. Zoller},
  journal={Physical Review A},
  year={2019},
  volume={99}
}
  • A. Elben, B. Vermersch, +1 author P. Zoller
  • Published 2019
  • Physics
  • Physical Review A
  • We develop a general theoretical framework for measurement protocols employing statistical correlations of randomized measurements. We focus on locally randomized measurements implemented with local random unitaries in quantum lattice models. In particular, we discuss the theoretical details underlying the recent measurement of the second Renyi entropy of highly mixed quantum states consisting of up to $10$ qubits in a trapped-ion quantum simulator [Brydges et al., Science 364, 260 (2019)]. We… CONTINUE READING

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