Abstract
We discuss the Wigner functions and tomographic probability distributions of two-qubit states. We give the kernel of the map, which provides the expression of the state tomogram in terms of the Wigner function of the two-qubit state, in an explicit form. Also we obtain the kernel of the inverse map and elucidate the connection of the constructed maps with the star-product scheme of quantization.
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Dedicated to the memory of Anatoly N. Oraevsky, Professor at the P.N. Lebedev Physical Institute and Moscow Engineering Physics Institute.
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Adam, P., Andreev, V.A., Ghiu, I. et al. Finite Phase Space, Wigner Functions, and Tomography for Two-Qubit States. J Russ Laser Res 35, 427–436 (2014). https://doi.org/10.1007/s10946-014-9444-1
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DOI: https://doi.org/10.1007/s10946-014-9444-1