Simple bounds for one-shot pure-state distillation in general resource theories

Madhav Krishnan Vijayan, Eric Chitambar, and Min-Hsiu Hsieh
Phys. Rev. A 102, 052403 – Published 4 November 2020

Abstract

We present bounds for distilling many copies of a pure state from an arbitrary initial state in a general quantum resource theory. Our bounds apply to operations that are able to generate no more than a δ amount of resource, where δ0 is a given parameter. To maximize applicability of our upper bound, we assume little structure on the set of free states under consideration besides a weak form of superadditivity of the function Gmin(ρ), which measures the overlap between ρ and the set of free states. Our bounds are given in terms of this function and the robustness of resource. Known results in coherence and entanglement theory are reproduced in this more general framework.

  • Received 14 July 2020
  • Accepted 13 October 2020

DOI:https://doi.org/10.1103/PhysRevA.102.052403

©2020 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Madhav Krishnan Vijayan1,*, Eric Chitambar2, and Min-Hsiu Hsieh1

  • 1Centre for Quantum Software and Information, University of Technology Sydney, NSW 2007, Australia
  • 2Department of Electrical and Computer Engineering, Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

  • *madhavkrishnan.vijayan@student.uts.edu.au

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Issue

Vol. 102, Iss. 5 — November 2020

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