Mutually Unbiased Bases for Continuous Variables

Stefan Weigert, Michael Wilkinson

Research output: Contribution to journalArticlepeer-review

Abstract

The concept of mutually unbiased bases is studied for N pairs of continuous variables. To find mutually unbiased bases reduces, for specific states related to the Heisenberg-Weyl group, to a problem of symplectic geometry. Given a single pair of continuous variables, three mutually unbiased bases are identified while five such bases are exhibited for two pairs of continuous variables. For N=2, the golden ratio occurs in the definition of these mutually unbiased bases suggesting the relevance of number theory not only in the finite-dimensional setting.

Original languageEnglish
Article number020303
Number of pages4
JournalPhysical Review A
Volume78
Issue number2
DOIs
Publication statusPublished - 29 Aug 2008

Keywords

  • STATE DETERMINATION
  • COHERENT STATES
  • HILBERT-SPACE
  • QUANTUM

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