Auflistung nach Schlagwort "quantum entanglement"

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  • Detecting metrologically useful entanglement in the vicinity of Dicke states 
    Apellaniz, Iagoba; Lücke, Bernd; Peise, Jan; Klempt, Carsten; Toth, Geza (Bristol : IOP Publishing Ltd., 2015-08-13)
    We present a method to verify the metrological usefulness of noisy Dicke states of a particle ensemble with only a few collective measurements, without the need for a direct measurement of the sensitivity. Our method ...
  • Entanglement and extreme spin squeezing of unpolarized states 
    Vitagliano, Giuseppe; Apellaniz, Iagoba; Kleinmann, M.; Lücke, Bernd; Klempt, Carsten; Toth, Geza (Bristol : Institute of Physics Publishing, 2017)
    We present criteria to detect the depth of entanglement in macroscopic ensembles of spin-j particles using the variance and second moments of the collective spin components. The class of states detected goes beyond traditional ...
  • Multimode optomechanics in the strong cooperativity regime : towards optomechanical entanglement with micromechanical membranes 
    Moghadas Nia, Ramon (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)
    Quantum entanglement is an essential feature of quantum physics and an important resource for applications in quantum information processing and quantum communication, including prominent examples such as quantum teleportation ...
  • Quantum control of optomechanical systems 
    Hofer, Sebastian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2015)
    [no abstract]
  • Quantum Otto heat engine based on a multiferroic chain working substance 
    Azimi, M.; Chotorlishvili, L.; Mishra, S.K.; Vekua, Teimuraz; Huebner, W.; Berakdar, J. (Bristol : IOP Publishing Ltd., 2014-06-12)
    We study a quantum Otto engine operating on the basis of a helical spin-1/2 multiferroic chain with strongly coupled magnetic and ferroelectric order parameters. The presence of a finite spin chirality in the working ...