学術雑誌論文

学術雑誌論文

text

Physical Review Research. 2025, 7(3), p. 033050

Multiobject operational tasks for measurement incompatibility

American Physical Society (APS)

英語

text

2025-07-11

https://doi.org/10.1103/m7ln-tb1s

Ducuara Andrés F., Takakura Ryo, Hernandez Fernando J., et al. Multiobject operational tasks for measurement incompatibility. Physical Review Research 7, 033050 (2025); https://doi.org/10.1103/m7ln-tb1s.

We introduce multiobject operational tasks for measurement incompatibility in the form of multiobject quantum subchannel discrimination and exclusion games with prior information, where a player can simultaneously harness the resources contained within both a quantum state and a set of measurements. We show that any fully or partially resourceful pair of objects is useful for a suitably chosen multiobject subchannel discrimination and exclusion game with prior information. The advantage provided by a fully or partially resourceful object against all possible fully free objects in such a game can be quantified in a multiplicative manner by the resource quantifiers of generalized robustness and the weight of a resource for discrimination and exclusion games, respectively. These results hold for arbitrary properties of quantum states as well as for arbitrary properties of sets of measurements closed under classical pre- and postprocessing and, consequently, include measurement incompatibility as a particular case. We furthermore show that these results are not exclusive to quantum theory, but can also be extended to the realm of general probabilistic theories.

This article is licensed under a Creative Commons Attribution 4.0 International License.

102903

Multiobject operational tasks for measurement incompatibility

American Physical Society (APS)

英語

2025-07-11

Physical Review Research

7

3

033050

https://doi.org/10.1103/m7ln-tb1s

https://hdl.handle.net/11094/102903