English

One-Shot Operational Quantum Resource Theory

Quantum Physics 2019-07-11 v2

Abstract

A fundamental approach for the characterization and quantification of all kinds of resources is to study the conversion between different resource objects under certain constraints. Here we analyze, from a resource-non-specific standpoint, the optimal efficiency of resource formation and distillation tasks with only a single copy of the given quantum state, thereby establishing a unified framework of one-shot quantum resource manipulation. We find general bounds on the optimal rates characterized by resource measures based on the smooth max/min-relative entropies and hypothesis testing relative entropy, as well as the free robustness measure, providing them with general operational meanings in terms of optimal state conversion. Our results encompass a wide class of resource theories via the theory-dependent coefficients we introduce, and the discussions are solidified by important examples, such as entanglement, coherence, superposition, magic states, asymmetry, and thermal non-equilibrium.

Keywords

Cite

@article{arxiv.1904.05840,
  title  = {One-Shot Operational Quantum Resource Theory},
  author = {Zi-Wen Liu and Kaifeng Bu and Ryuji Takagi},
  journal= {arXiv preprint arXiv:1904.05840},
  year   = {2019}
}

Comments

26 pages, 2 figures

R2 v1 2026-06-23T08:37:03.629Z