We consider the entropy-energy inequality for a three-level atom implemented on superconducting circuits with the Josephson junction. It is suggested to use the positivity of the relative entropy of the qutritquantum system for verification of tomography of quantum states of qudits. The relations obtained are considered in detail on the example of the temperature density matrix.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 178–181, November, 2016.
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Man’ko, V.I., Markovich, L.A. Entropy-Energy Inequality for a Qutrit on the Example of a Three-Level Atom. Russ Phys J 59, 1937–1941 (2017). https://doi.org/10.1007/s11182-017-0998-6
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DOI: https://doi.org/10.1007/s11182-017-0998-6