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Distinguishing Short Quantum Computations

Author Bill Rosgen



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LIPIcs.STACS.2008.1322.pdf
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Bill Rosgen

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Bill Rosgen. Distinguishing Short Quantum Computations. In 25th International Symposium on Theoretical Aspects of Computer Science. Leibniz International Proceedings in Informatics (LIPIcs), Volume 1, pp. 597-608, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2008)
https://doi.org/10.4230/LIPIcs.STACS.2008.1322

Abstract

Distinguishing logarithmic depth quantum circuits on mixed states is shown to be complete for $QIP$, the class of problems having quantum interactive proof systems. Circuits in this model can represent arbitrary quantum processes, and thus this result has implications for the verification of implementations of quantum algorithms. The distinguishability problem is also complete for $QIP$ on constant depth circuits containing the unbounded fan-out gate. These results are shown by reducing a $QIP$-complete problem to a logarithmic depth version of itself using a parallelization technique.
Keywords
  • Quantum information
  • computational complexity
  • quantum circuits
  • quantum interactive proof systems

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