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arXiv · 1702.07518

Probing Quantum Memory Effects with High Resolution

Matthias Wittemer·Govinda Clos·Heinz-Peter Breuer·Ulrich Warring·Tobias Schaetz
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Abstract

Trapped atomic ions enable a precise quantification of the flow of information between internal and external degrees of freedom by employing a non-Markovianity measure [H.-P. Breuer et al., Phys. Rev. Lett. 103, 210401 (2009)]. We reveal that the nature of projective measurements in quantum mechanics leads to a fundamental, nontrivial bias in this measure. We observe and study the functional dependence of this bias to permit a demonstration of applications of local quantum probing. An extension of our approach can act as a versatile reference, relevant for understanding complex systems.

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Matthias Wittemer, Govinda Clos, Heinz-Peter Breuer, Ulrich Warring, Tobias Schaetz. 2017-02-24. Probing Quantum Memory Effects with High Resolution. https://doi.org/10.1103/physreva.97.020102

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