Quantification of complementarity in multi-qubit systems
arXiv:quant-ph/0507183 · doi:10.1103/PhysRevA.72.052109
Abstract
Complementarity was originally introduced as a qualitative concept for the discussion of properties of quantum mechanical objects that are classically incompatible. More recently, complementarity has become a \emph{quantitative} relation between classically incompatible properties, such as visibility of interference fringes and "which-way" information, but also between purely quantum mechanical properties, such as measures of entanglement. We discuss different complementarity relations for systems of 2-, 3-, or \textit{n} qubits. Using nuclear magnetic resonance techniques, we have experimentally verified some of these complementarity relations in a two-qubit system.
12 pages, 10 figures (A display error about the figures in the previous version)
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- Revisiting Bohr's principle of complementarity using a quantum device
- Experimental demonstration of wave-particle duality relation based on coherence measure
- On the quantumness of correlations in nuclear magnetic resonance
- Entanglement in a class of multiqubit mixed states without multipartite tangles
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- Information gain versus interference in Bohr's principle of complementarity
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- Quantum coherence with incomplete set of pointers and corresponding wave-particle duality
- Phase-dependent which-way information
- Measure-independent description of wave-particle duality via coherence
- Wave-Particle-Mixedness Complementarity