Bell states of atoms with ultralong lifetimes and their tomographic state analysis -: art. no. 220402
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- CF Roos
- GPT Lancaster
- M Riebe
- H Häffner
- W Hänsel
- S Gulde
- C Becher
- J Eschner
- F Schmidt-Kaler
- R Blatt
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000221844400002&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1103/PhysRevLett.92.220402
- eISSN
- 1079-7114
- Externe Identifier
- Clarivate Analytics Document Solution ID: 826QU
- PubMed Identifier: 15245202
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 22
- Zeitschrift
- PHYSICAL REVIEW LETTERS
- Artikelnummer
- ARTN 220402
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Titel
- Bell states of atoms with ultralong lifetimes and their tomographic state analysis -: art. no. 220402
- Sub types
- Article
- Ausgabe der Zeitschrift
- 92
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Autoren
- CF Roos
- GPT Lancaster
- M Riebe
- H Häffner
- W Hänsel
- S Gulde
- C Becher
- J Eschner
- F Schmidt-Kaler
- R Blatt
- DOI
- 10.1103/physrevlett.92.220402
- eISSN
- 1079-7114
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 22
- Zeitschrift
- Physical Review Letters
- Sprache
- en
- Artikelnummer
- 220402
- Online publication date
- 2004
- Status
- Published online
- Herausgeber
- American Physical Society (APS)
- Herausgeber URL
- http://dx.doi.org/10.1103/physrevlett.92.220402
- Datum der Datenerfassung
- 2017
- Titel
- Bell States of Atoms with Ultralong Lifetimes and Their Tomographic State Analysis
- Ausgabe der Zeitschrift
- 92
Data source: Crossref
- Abstract
- Arbitrary atomic Bell states with two trapped ions are generated in a deterministic and preprogrammed way. The resulting entanglement is quantitatively analyzed using various measures of entanglement. For this, we reconstruct the density matrix using single qubit rotations and subsequent measurements with near-unity detection efficiency. This procedure represents the basic building block for future process tomography of quantum computations. As a first application, the temporal decay of entanglement is investigated in detail. We observe ultralong lifetimes for the Bell states Psi(+/-), close to the fundamental limit set by the spontaneous emission from the metastable upper qubit level and longer than all reported values by 3 orders of magnitude.
- Addresses
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
- Autoren
- CF Roos
- GPT Lancaster
- M Riebe
- H Häffner
- W Hänsel
- S Gulde
- C Becher
- J Eschner
- F Schmidt-Kaler
- R Blatt
- DOI
- 10.1103/physrevlett.92.220402
- eISSN
- 1079-7114
- Externe Identifier
- PubMed Identifier: 15245202
- Open access
- false
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 22
- Zeitschrift
- Physical review letters
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2004
- Paginierung
- 220402
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum der Datenerfassung
- 2004
- Titel
- Bell states of atoms with ultralong lifetimes and their tomographic state analysis.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 92
Data source: Europe PubMed Central
- Abstract
- Arbitrary atomic Bell states with two trapped ions are generated in a deterministic and preprogrammed way. The resulting entanglement is quantitatively analyzed using various measures of entanglement. For this, we reconstruct the density matrix using single qubit rotations and subsequent measurements with near-unity detection efficiency. This procedure represents the basic building block for future process tomography of quantum computations. As a first application, the temporal decay of entanglement is investigated in detail. We observe ultralong lifetimes for the Bell states Psi(+/-), close to the fundamental limit set by the spontaneous emission from the metastable upper qubit level and longer than all reported values by 3 orders of magnitude.
- Autoren
- CF Roos
- GPT Lancaster
- M Riebe
- H Häffner
- W Hänsel
- S Gulde
- C Becher
- J Eschner
- F Schmidt-Kaler
- R Blatt
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/15245202
- DOI
- 10.1103/PhysRevLett.92.220402
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 22
- Zeitschrift
- Phys Rev Lett
- Sprache
- eng
- Country
- United States
- Paginierung
- 220402
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2004
- Titel
- Bell states of atoms with ultralong lifetimes and their tomographic state analysis.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 92
Data source: PubMed
- Beziehungen:
- Property of