Optimal common resource in majorization-based resource theories

Abstract

We address the problem of finding the optimal common resource for an arbitrary family of target states in quantum resource theories based on majorization, that is, theories whose conversion law between resources is determined by a majorization relationship, such as it happens with entanglement, coherence or purity. We provide a conclusive answer to this problem by appealing to the completeness property of the majorization lattice. We give a proof of this property that relies heavily on the more geometric construction provided by the Lorenz curves, which allows to explicitly obtain the corresponding infimum and supremum. Our framework includes the case of possibly non-denumerable sets of target states (i.e. targets sets described by continuous parameters). In addition, we show that a notion of approximate majorization, which has recently found application in quantum thermodynamics, is in close relation with the completeness of this lattice. Finally, we provide some examples of optimal common resources within the resource theory of quantum coherence.

14 pages, 2 figures - close to the published version

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Cited by in corpus (10)

• The Uncertainty Principle of Quantum Processes
• Generalized coherence vector applied to coherence transformations and quantifiers
• Extremal elements of a sublattice of the majorization lattice and approximate majorization
• Strong Majorization Uncertainty Relations: Theory and Experiment
• Inevitable Negativity: Additivity Commands Negative Quantum Channel Entropy
• Probabilistic pure state conversion on the majorization lattice
• A Universal Quantum Certainty Relation for Arbitrary Number of Observables
• Probabilistic Coherence Transformation Under Strictly Incoherent Operation
• Optimal universal bounds for waves with varied coherence based on supremum and infimum coherence spectra
• Universal proofs of entropic continuity bounds via majorization flow