A classification of entanglement in three-qubit systems

Carlos Sabín, Guillermo García-Alcaine

Published 2007-07-12, updated 2008-05-19Version 5

We present a classification of three-qubit states based in their three-qubit and reduced two-qubit entanglements. For pure states these criteria can be easily implemented, and the different types can be related with sets of equivalence classes under Local Unitary operations. For mixed states characterization of full tripartite entanglement is not yet solved in general; some partial results will be presented here.