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SIC-POVMs and Compatibility among Quantum States

Author

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  • Blake C. Stacey

    (Physics Department, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA)

Abstract

An unexpected connection exists between compatibility criteria for quantum states and Symmetric Informationally Complete quantum measurements (SIC-POVMs). Beginning with Caves, Fuchs and Schack’s "Conditions for compatibility of quantum state assignments", I show that a qutrit SIC-POVM studied in other contexts enjoys additional interesting properties. Compatibility criteria provide a new way to understand the relationship between SIC-POVMs and mutually unbiased bases, as calculations in the SIC representation of quantum states make clear. This, in turn, illuminates the resources necessary for magic-state quantum computation, and why hidden-variable models fail to capture the vitality of quantum mechanics.

Suggested Citation

  • Blake C. Stacey, 2016. "SIC-POVMs and Compatibility among Quantum States," Mathematics, MDPI, vol. 4(2), pages 1-14, June.
  • Handle: RePEc:gam:jmathe:v:4:y:2016:i:2:p:36-:d:71226
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