Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/12255
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Sequential Implementation of Global Quantum Operations

AuthorsLamata, Lucas CSIC ORCID; León, Juan CSIC ORCID; Pérez-García, D.; Salgado, D.; Solano, E.
Keywords[PACS] Quantum computation architectures and implementations
[PACS] Foundations of quantum mechanics; measurement theory
[PACS] Quantum state engineering and measurements (quantum optics)
Issue Date31-Oct-2008
PublisherAmerican Physical Society
CitationPhysical Review Letters 101(18): 180506 (2008)
AbstractWe study the possibility for a global unitary applied on an arbitrary number of qubits to be decomposed in a sequential unitary procedure, where an ancillary system is allowed to interact only once with each qubit. We prove that sequential unitary decompositions are in general impossible for genuine entangling operations, even with an infinite-dimensional ancilla, being the controlled-NOT gate a paradigmatic example. Nevertheless, we find particular nontrivial operations in quantum information that can be performed in a sequential unitary manner, as is the case of quantum error correction and quantum cloning.
Description4 pages, 3 figures.-- PACS nrs.: 03.67.Lx; 03.65.Ta; 42.50.Dv.-- ArXiv pre-print available at: http://arxiv.org/abs/0711.3652
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.101.180506
URIhttp://hdl.handle.net/10261/12255
DOI10.1103/PhysRevLett.101.180506
ISSN0031-9007
Appears in Collections:(CFMAC-IFF) Artículos

Files in This Item:
File Description SizeFormat
PRL-101-180506-2008.pdf269,91 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

SCOPUSTM   
Citations

23
checked on May 16, 2022

WEB OF SCIENCETM
Citations

21
checked on May 14, 2022

Page view(s)

324
checked on May 17, 2022

Download(s)

218
checked on May 17, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.