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@PHDTHESIS{Gustiani:812041,
      author       = {Gustiani, Cica},
      othercontributors = {DiVincenzo, David and Hassler, Fabian},
      title        = {{B}lind oracular quantum computation : from concept to
                      physical implementation},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {RWTH Aachen University},
      reportid     = {RWTH-2021-01620},
      pages        = {1 Online-Ressource (viii, 226 Seiten) : Illustrationen},
      year         = {2020},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University 2021; Dissertation, RWTH Aachen University, 2020},
      abstract     = {Recent years have seen much excitement for application of
                      quantum computing, triggered by substantial — and ongoing
                      — advances in experimental realizations of quantum
                      computing. It is widely believed that client-server is the
                      setting for quantum computers that will prevail in the
                      future, where privacy becomes crucial in the application.
                      Moreover, a recent experiment by Barz et al. [1]
                      successfully demonstrated a blind quantum computation
                      scheme: a client-server quantum computation in which a
                      client with limited quantum power controls the execution of
                      a quantum computation on a powerful server, without
                      revealing valuable details of the computation. In this
                      thesis, we discuss the Blind Oracular Quantum Computation
                      (BOQC) scheme, a blind quantum computing scheme in which a
                      third party (the oracle)with limited quantum power, assists
                      the execution of a client’s oracular quantum computations
                      by implementing oracle evaluations. In BOQC, a client with
                      limited quantum power and without the capacity to construct
                      the oracle, can delegate her oracular quantum computations
                      to a powerful yet untrustworthy server, with the help of the
                      oracle. We show that BOQC is provably blind within a
                      composable definition such that the server cannot learn
                      about the clients’ computation. We provide a realization
                      of BOQC in a physical setting, particularly in a diamond
                      nitrogen-vacancy (NV) center platform. In BOQC, the server
                      has a One-Way Quantum Computer (1WQC) that is
                      resource-demanding. To lower the resource-requirements, we
                      develop the BOQCo protocol, a BOQC that employs lazy 1WQC to
                      minimize the number of qubits needed. We also provide
                      systematic numerical optimization to find resource states
                      that are BOQC-compatible by admitting BOQC security
                      criteria. Finally, we give explicit oracular quantum
                      algorithms that are BOQC-compatible to be executed on the
                      NV-center platform. The algorithms include 2-qubit
                      Grover’s algorithm using three qubits, 3-qubit exact
                      Grover’s algorithm using four qubits, 2-qubit Simon’s
                      algorithm with a useless oracle using four qubits, and
                      Deutsch’s algorithm using three physical qubits. We hope
                      that these BOQC algorithms intrigue some experimentalists to
                      try to implement them.[1] S. Barz et al. “Demonstration of
                      Blind Quantum Computing”. In: Science 335.6066 (2012), pp.
                      303–308.},
      cin          = {137310 / 130000},
      ddc          = {530},
      cid          = {$I:(DE-82)137310_20140620$ / $I:(DE-82)130000_20140620$},
      typ          = {PUB:(DE-HGF)11},
      doi          = {10.18154/RWTH-2021-01620},
      url          = {https://publications.rwth-aachen.de/record/812041},
}