Experimental information complementarity of two-qubit states

A. Fedrizzi, B. Skerlak, T. Paterek, M. P. de Almeida, A. G. White

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The concept of information offers a more complete description of complementarity than the traditional approach based on observables. We present the first experimental test of information complementarity for two-qubit pure states, achieving close agreement with theory. We also explore the distribution of information in a comprehensive range of mixed states. Our results highlight the strange and subtle properties of even the simplest quantum systems; for example, entanglement can be increased by reducing the correlations between two subsystems.

Original languageEnglish
Article number053038
Number of pages11
JournalNew Journal of Physics
Volume13
DOIs
Publication statusPublished - 20 May 2011

Keywords

  • WAVE-PARTICLE DUALITY
  • WHICH-WAY INFORMATION
  • FRINGE VISIBILITY
  • QUANTUM-MECHANICS
  • INTERFEROMETER
  • ENTANGLEMENT

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