Squashed entanglement, also called CMI entanglement (CMI can be pronounced "see me"), is an information theoretic measure of quantum entanglement for a bipartite quantum system. If formula_1 is the density matrix of a system formula_2 composed of two subsystems formula_3 and formula_4, then the CMI entanglement formula_5 of system formula_2 is defined by
Squashed entanglement is called quantum entanglement.
Squashed entanglement is also called CMI entanglement and is a measure of quantum entanglement. The mix of these facts confused the model.
( z1 call :ARG1 ( z2 entanglement :ARG1-of ( z3 squash ) ) :ARG2 ( z4 entanglement :mod ( z5 quantum ) ) )