Quantum replication at the Heisenberg limit

Giulio Chiribella (), Yuxiang Yang and Andrew Chi-Chih Yao
Additional contact information
Giulio Chiribella: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Yuxiang Yang: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Andrew Chi-Chih Yao: Institute for Interdisciplinary Information Sciences, Tsinghua University

Nature Communications, 2013, vol. 4, issue 1, 1-8

Abstract: Abstract No process in nature can perfectly clone an arbitrary quantum state. But is it possible to engineer processes that replicate quantum information with vanishingly small error? Here we demonstrate the possibility of probabilistic super-replication phenomena where N equally prepared quantum clocks are transformed into a much larger number of M nearly perfect replicas, with an error that rapidly vanishes whenever M is small compared with N2. The quadratic replication rate is the ultimate limit imposed by quantum mechanics to the proliferation of information and is fundamentally linked with the Heisenberg limit of quantum metrology.

Date: 2013
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/ncomms3915 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3915

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms3915

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().