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quant-ph2026
Hiai--Petz Skew Informations and Sharp Uncertainty Relations for a Single Observable
Gen Kimura
We study intrinsic quantum uncertainty associated with a single observable from the viewpoint of skew information. By relaxing ordinary additivity while retaining the other fundame…
quant-ph2026
Another Legacy of Andrzej Kossakowski: A Self-Contained Derivation of the GKLS Equation
Gen Kimura
This note is written for the special issue of OSID dedicated to the 50th anniversary of the Gorini--Kossakowski--Lindblad--Sudarshan equation. Its purpose is not to give a comprehe…
quant-ph2026
Optimal Uncertainty Relations for a Single Observable
Haruki Yamashita, Aina Mayumi, Gen Kimura
Uncertainty relations are usually formulated as trade-offs between two or more observables. Yet the uncertainty of a single observable can already contain an intrinsically quantum…