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Optimal distillation of quantum coherence with reduced waste of resources

Torun, Gökhan; Lami, Ludovico; Adesso, Gerardo; Yildiz, Ali

Authors

Gökhan Torun

Ludovico Lami

Ali Yildiz



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.

Journal Article Type Article
Publication Date Jan 14, 2019
Journal Physical Review A
Print ISSN 2469-9926
Electronic ISSN 2469-9934
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 99
Issue 1
Article Number 012321
APA6 Citation Torun, G., Lami, L., Adesso, G., & Yildiz, A. (2019). Optimal distillation of quantum coherence with reduced waste of resources. Physical Review A, 99(1), https://doi.org/10.1103/physreva.99.012321
DOI https://doi.org/10.1103/physreva.99.012321
Keywords Quantum Physics; Mathematical Physics
Publisher URL https://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.012321

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