Performing joint measurements and transformations on several qubits by operating on a single 'control' qubit

@article{Janzing2003PerformingJM,
  title={Performing joint measurements and transformations on several qubits by operating on a single 'control' qubit},
  author={D. Janzing and T. Decker and T. Beth},
  journal={Physical Review A},
  year={2003},
  volume={67},
  pages={042320}
}
  • D. Janzing, T. Decker, T. Beth
  • Published 2003
  • Physics
  • Physical Review A
  • An n-qubit quantum register can in principle be completely controlled by operating on a single qubit that interacts with the register via an appropriate fixed interaction. In this paper, we consider a hypothetical system consisting of n spin-1/2 nuclei that interact magnetically with an electron spin (control and probe particle). We describe control algorithms that implement premeasurements on nontrivial joint observables. We then devote a section to the implementation of unitary gates for the… CONTINUE READING

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