2022
DOI: 10.48550/arxiv.2202.03523
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Resource Marginal Problems

Abstract: We introduce the resource marginal problems, which concern the possibility of having a resource-free target subsystem compatible with a given collection of marginal density matrices. By identifying an appropriate choice of resource 𝑅 and target subsystem T, our problems reduce, respectively, to the well-known marginal problems for quantum states and the problem of determining if a given quantum system is a resource. More generally, we define a set of marginal states to be resource-free incompatible with a tar… Show more

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Cited by 1 publication
(1 citation statement)
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“…From the structural perspective of quantum resource theories, it is important to know whether a single framework can cover 'resource theory of channels' and 'channel marginal problems' simultaneously. In our recent pre-print [8], we have introduced a unified framework, dubbed resource marginal problems, to include resource theory of states, state marginal problems, resource theory of channels, and channel marginal problems at the same time. We provide a systematic approach to obtain robustness measures, witness form, and operational advantages in discrimination tasks.…”
Section: Channel Resource Theories + Channel Marginal Problemsmentioning
confidence: 99%
“…From the structural perspective of quantum resource theories, it is important to know whether a single framework can cover 'resource theory of channels' and 'channel marginal problems' simultaneously. In our recent pre-print [8], we have introduced a unified framework, dubbed resource marginal problems, to include resource theory of states, state marginal problems, resource theory of channels, and channel marginal problems at the same time. We provide a systematic approach to obtain robustness measures, witness form, and operational advantages in discrimination tasks.…”
Section: Channel Resource Theories + Channel Marginal Problemsmentioning
confidence: 99%