Implementation of NMR quantum computation with parahydrogen-derived high-purity quantum states

@article{Anwar2004ImplementationON,
  title={Implementation of NMR quantum computation with parahydrogen-derived high-purity quantum states},
  author={Muhammad Sabieh Anwar and J. A. Jones and Damir Blazina and Simon B. Duckett and H. Carteret},
  journal={Physical Review A},
  year={2004},
  volume={70},
  pages={032324}
}
We demonstrate the implementation of a quantum algorithm on a liquid-state NMR quantum computer using almost pure states. This was achieved using a two-qubit device where the initial state is an almost pure singlet nuclear spin state of a pair of $^{1}\mathrm{H}$ nuclei arising from a chemical reaction involving parahydrogen. We have implemented Deutsch's algorithm for distinguishing between constant and balanced functions with a single query. 
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