Upper bound for the Holevo quantity arising from the fundamental entropic inequality
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Upper bound for the Holevo quantity arising from the fundamental entropic inequality
M. E. Shirokov
AbstractWe show how the fundamental entropic inequality proved recently in [arXiv:2408.15306] can be used to obtain a quite accurate upper bound on the Holevo quantity of a discrete ensemble of quantum states expressed via the probabilities and the metric characteristics of this ensembles.