Browsing Fakultäten by Author "5a4139dc-2863-4a75-a982-e45caec3f1fd"

Browsing Fakultäten by Author "5a4139dc-2863-4a75-a982-e45caec3f1fd"

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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 ...
  • Detecting Multiparticle Entanglement of Dicke States 
    Lücke, Bernd; Peise, Jan; Vitagliano, Giuseppe; Arlt, Jan J.; Santos, Luis; Toth, Geza; Klempt, Carsten (College Park : American Physical Society, 2014)
    Recent experiments demonstrate the production of many thousands of neutral atoms entangled in their spin degrees of freedom. We present a criterion for estimating the amount of entanglement based on a measurement of the ...
  • 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 ...

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