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arXiv · 1912.12222

Efficient Quantum Tomography of Two-Mode Wigner Functions

Ludmila A. S. Botelho·Reinaldo O. Vianna
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Abstract

We introduce an efficient method to reconstruct the Wigner function of many-mode continuous variable systems. It is based on convex optimization with semidefinite programs, and also includes a version of the maximum entropy principle, in order to yield unbiased states. A key ingredient of the proposed approach is the representation of the state in a truncated Fock basis. As a bonus, the discrete finite representation allows to easily quantify the entanglement.

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Ludmila A. S. Botelho, Reinaldo O. Vianna. 2019-12-27. Efficient Quantum Tomography of Two-Mode Wigner Functions. https://doi.org/10.1140/epjd%2Fe2020-100649-3

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