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@ARTICLE{Omran:864401,
      author       = {Omran, A. and Levine, H. and Keesling, A. and Semeghini, G.
                      and Wang, T. T. and Ebadi, S. and Bernien, H. and Zibrov, A.
                      S. and Pichler, H. and Choi, S. and Jian, Cui and
                      Rossignolo, M. and Rembold, Phila and Montangero, S. and
                      Calarco, Tommaso and Endres, M. and Greiner, M. and
                      Vuletić, V. and Lukin, M. D.},
      title        = {{G}eneration and manipulation of {S}chrödinger cat states
                      in {R}ydberg atom arrays},
      journal      = {Science},
      volume       = {365},
      number       = {6453},
      issn         = {0036-8075},
      address      = {Washington DC},
      publisher    = {American Association for the Advancement of Science},
      reportid     = {FZJ-2019-04193},
      pages        = {570 - 574},
      year         = {2019},
      abstract     = {Quantum entanglement involving coherent superpositions of
                      macroscopically distinct states is among the most striking
                      features of quantum theory, but its realization is
                      challenging because such states are extremely fragile. Using
                      a programmable quantum simulator based on neutral atom
                      arrays with interactions mediated by Rydberg states, we
                      demonstrate the creation of “Schrödinger cat” states of
                      the Greenberger-Horne-Zeilinger (GHZ) type with up to 20
                      qubits. Our approach is based on engineering the energy
                      spectrum and using optimal control of the many-body system.
                      We further demonstrate entanglement manipulation by using
                      GHZ states to distribute entanglement to distant sites in
                      the array, establishing important ingredients for quantum
                      information processing and quantum metrology.},
      cin          = {PGI-8},
      ddc          = {500},
      cid          = {I:(DE-Juel1)PGI-8-20190808},
      pnm          = {144 - Controlling Collective States (POF3-144)},
      pid          = {G:(DE-HGF)POF3-144},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31395778},
      UT           = {WOS:000483195200035},
      doi          = {10.1126/science.aax9743},
      url          = {https://juser.fz-juelich.de/record/864401},
}