Suter, DieterPeng, XianhuaXhu, ZiewenDu, JiangfengLiu, MailiGao, Kelin2008-06-022008-06-022005-11-16Peng, X.; Zhu, X., Suter, D.; Du, J.; Liu, M.; Gao,K.: Quantification of complementarity in multi-qubit systems. In: Physical Reviews A Jg. 72(2005), 052109.http://hdl.handle.net/2003/2538910.17877/DE290R-7486Complementarity 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 quantitative relation between classically incompatible properties, such as the 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 two-, three-, or n qubits. Using nuclear magnetic resonance techniques, we have experimentally verified some of these complementarity relations in a two-qubit system.enThe American Physical Society53010.1103/PhysRevA.72.052109article (journal)http:/dx.doi.org/10.1103/PhysRevA.72.052109