Optimal distillation of quantum coherence with reduced waste of resources

Gökhan Torun, Ludovico Lami, Gerardo Adesso, Ali Yildiz

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We present an optimal probabilistic protocol to distill quantum coherence. Inspired by a specific entanglement distillation protocol, our main result yields a strictly incoherent operation that produces one of a family of maximally coherent states of variable dimension from any pure quantum state. We also expand this protocol to the case where it is possible, for some initial states, to avert any waste of resources as far as the output states are concerned, by exploiting an additional transformation into a suitable intermediate state. These results provide practical schemes for efficient quantum resource manipulation.

Original languageEnglish
Article number012321
JournalPhysical Review A
Volume99
Issue number1
DOIs
Publication statusPublished - 14 Jan 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

Funding

G.T. acknowledges financial support from the Scientific and Technological Research Council of Turkey (TUBITAK). L.L. and G.A. acknowledge financial support from the European Research Council (ERC) under the Starting Grant GQCOP (Grant No. 637352).

FundersFunder number
TUBITAK
Horizon 2020 Framework Programme637352
European Research Council
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

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