Information vs. disturbance in dimension D

  • Authors:
  • P. Oscar Boykin;Vwani P. Roychowdhury

  • Affiliations:
  • Department of Electrical and Computer Engineering, University of Florida, Gainesville, Florida;Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, California

  • Venue:
  • Quantum Information & Computation
  • Year:
  • 2005

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Abstract

We show that for Eve to get information in one basis about a state, she must cause errors in all bases that are mutually unbiased to that basis. Our result holds in any dimension. We also show that this result holds for all functions of messages that are encrypted with a key.