imits on the Power of Quantum Statistical Zero-Knowledge

  title={imits on the Power of Quantum Statistical Zero-Knowledge},
  author={John Watrous},
In this paper we propose a definition for honest verifier quantum statistical zero-knowledge interactive proof systems and study the resulting complexity class, which we denote QSZKHV. We prove several facts regarding this class, including: • The following problem is a complete promise problem for QSZKHV: given instructions for preparing two mixed quantum states, are the states close together or far apart with respect to the trace norm? This problem is a quantum generalization of the complete… CONTINUE READING
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