A Fedrizzi et al 2011 New J. Phys. 13 053038 doi:10.1088/1367-2630/13/5/053038
A Fedrizzi1,3, B Škerlak1, T Paterek2, M P de Almeida1 and A G White1
Show affiliationsThe 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.
03.67.Lx Quantum computation architectures and implementations
03.67.Mn Entanglement measures, witnesses, and other characterizations
Issue 5 (May 2011)
Received 21 October 2010
Published 20 May 2011
A Fedrizzi et al 2011 New J. Phys. 13 053038
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