Search results for "QUANTUM-MECHANICS"

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Hierarchies of geometric entanglement

2007

We introduce a class of generalized geometric measures of entanglement. For pure quantum states of $N$ elementary subsystems, they are defined as the distances from the sets of $K$-separable states ($K=2,...,N$). The entire set of generalized geometric measures provides a quantification and hierarchical ordering of the different bipartite and multipartite components of the global geometric entanglement, and allows to discriminate among the different contributions. The extended measures are applied to the study of entanglement in different classes of $N$-qubit pure states. These classes include $W$ and $GHZ$ states, and their symmetric superpositions; symmetric multi-magnon states; cluster s…

High Energy Physics - TheoryFOS: Physical sciencesMONOTONESQuantum entanglementSquashed entanglementMultipartite entanglementCombinatoricsSYSTEMSQuantum mechanicsMathematical PhysicsPhysicsQuantum PhysicsQUANTUM-MECHANICSCluster stateCURRENT SITUATIONQUANTUM-MECHANICS CURRENT SITUATION STATES SYSTEMS MONOTONESMathematical Physics (math-ph)Quantum PhysicsAtomic and Molecular Physics and OpticsCondensed Matter - Other Condensed MatterMultipartiteHigh Energy Physics - Theory (hep-th)STATESQubitBipartite graphW stateQuantum Physics (quant-ph)Other Condensed Matter (cond-mat.other)Physical Review A
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