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Quantum computing with mixed states

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Abstract

We discuss a model for quantum computing with initially mixed states. Although such a computer is known to be less powerful than a quantum computer operating with pure (entangled) states, it may efficiently solve some problems for which no efficient classical algorithms are known. We suggest a new implementation of quantum computation with initially mixed states in which an algorithm realization is achieved by means of optimal basis independent transformations of qubits.

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Author information

Authors and Affiliations

  1. Physikalisches Institut, Heidelberg Universität, 69120, Heidelberg, Germany

    M. Siomau

  2. Department of Theoretical Physics, Belarussian State University, 4 Nezavisimosti av., 220030, Minsk, Belarus

    M. Siomau

  3. Department of Physics, University of Oulu, PO Box 3000, 90014, Oulu, Finland

    S. Fritzsche

  4. GSI Helmholtzzentrum für Schwerionenforschung, 64291, Darmstadt, Germany

    S. Fritzsche

Authors
  1. M. Siomau
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  2. S. Fritzsche
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Correspondence to M. Siomau.

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Siomau, M., Fritzsche, S. Quantum computing with mixed states. Eur. Phys. J. D 62, 449–456 (2011). https://doi.org/10.1140/epjd/e2011-20070-y

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  • DOI: https://doi.org/10.1140/epjd/e2011-20070-y

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