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Comparing classicality of qutrits from Hilbert–Schmidt, Bures and Bogoliubov–Kubo–Mori ensembles
Zapiski Nauchnykh Seminarov POMI, Representation theory, dynamical systems, combinatorial methods. Part XXXIV, Tome 517 (2022), pp. 250-267 Cet article a éte moissonné depuis la source Math-Net.Ru

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In the report we analyze the indicator/measure of classicality of quantum states defined as the probability to find a state with a positive Wigner function within a unitary invariant random ensemble. The indicators of classicality of three ensembles associated with the Hilbert–Schmidt, Bures and Bogoliubov–Kubo–Mori metrics on the space of quantum states of 3-level system are computed. Their dependence on a moduli parameter of the Wigner function is studied for all strata of a qutrit state space stratified in accordance with the unitary group action. 
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     author = {A. Khvedelidze and A. Torosyan},
     title = {Comparing classicality of qutrits from {Hilbert{\textendash}Schmidt,} {Bures} and {Bogoliubov{\textendash}Kubo{\textendash}Mori} ensembles},
     journal = {Zapiski Nauchnykh Seminarov POMI},
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     year = {2022},
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A. Khvedelidze; A. Torosyan. Comparing classicality of qutrits from Hilbert–Schmidt, Bures and Bogoliubov–Kubo–Mori ensembles. Zapiski Nauchnykh Seminarov POMI, Representation theory, dynamical systems, combinatorial methods. Part XXXIV, Tome 517 (2022), pp. 250-267. http://geodesic.mathdoc.fr/item/ZNSL_2022_517_a13/

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