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  • 2000-2004  (2)
  • PACS. 03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) – 03.67.Lx Quantum computation – 75.10.Jm Quantized spin models  (1)
  • PACS. 23.40.-s Beta decay; double beta decay; electron and muon capture – 21.10.Tg Lifetimes – 27.60.+j 90 ?A? 149  (1)
  • 1
    Digitale Medien
    Digitale Medien
    New β-delayed proton precursor 149Yb near the proton drip line (2001)
    Springer
    The European physical journal 12 (2001), S. 1-4 
    Details
    ISSN: 1434-601X
    Schlagwort(e): PACS. 23.40.-s Beta decay; double beta decay; electron and muon capture – 21.10.Tg Lifetimes – 27.60.+j 90 ?A? 149
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract. The β-delayed proton precursor 149Yb was synthesized in the reaction 112Sn(40Ca, 3n) and identified by using a proton-gamma coincidence measurements in combination with a helium-jet fast tape transport system. Its β-delayed proton spectrum was observed. The half-life of 149Yb was determined to be 0.7±0.2 s. The 253, 101, and 365 keV γ transitions in 147Dy, following β-delayed proton emission of 148Ho decay, were reported for the first time.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100500170032
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Pairwise entanglement in symmetric multi-qubit systems (2002)
    Springer
    The European physical journal 18 (2002), S. 385-391 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS. 03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) – 03.67.Lx Quantum computation – 75.10.Jm Quantized spin models
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: For pairs of particles extracted from a symmetric state of N two-level systems, the two-particle density matrix is expressed in terms of expectation values of collective spin operators for the large system. Results are presented for experimentally relevant examples of pure states: Dicke states | S, M〉, spin coherent, and spin squeezed states, where only the symmetric subspace, S = N/2 is populated, and for thermally entangled mixed states populating also lower S values. The entanglement of the extracted pair is then quantified by a calculation of the concurrence, which provides directly the entanglement of formation of the pair.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjd/e20020045
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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