Revisiting the equality conditions of the data-processing inequality for the sandwiched Rényi divergence
نویسندگان
چکیده
We provide a transparent, simple, and unified treatment of recent results on the equality conditions for data-processing inequality sandwiched quantum Rényi divergence, including statement that in implies recoverability via Petz recovery map full range parameter ? recently proven by Jen?ová [J. Phys. A: Math. Theor. 50, 085303 (2017)]. also obtain new set conditions, generalizing previous result Leditzky et al. [Lett. 107, 61
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ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 2022
ISSN: ['0022-2488', '1527-2427', '1089-7658']
DOI: https://doi.org/10.1063/5.0058984