A Characterization of Global Entanglement
Quantum Information Processing
Entanglement measure for pure six-qubit quantum states
Quantum Information Processing
Hi-index | 0.00 |
In this work we study the entanglement of pure four-qubit quantum states. The analysis is realized, firstly, through the comparison between two different entanglement measures: the Groverian entanglement measure and the residual entanglement calculated with negativities. After, we use the last to measure the entanglement of several four-qubit states and the variation of the entanglement when the four-qubit state is processed by a two-qubit gate.