A entanglement monotone from the contextual fraction

Superposition and entanglement are well-known phenomena in quantum theory.  Contextuality is a lesser-known phenomenon, but it is believed to be a necessary resource for quantum advantage in computing.

In the paper 'An entanglement monotone from the contextual fraction', published in New Journal of Physics, the authors define an entanglement quantifier for 2-qubit states from a measure of contextuality called the contextual fraction.  They use it to set an upper bond for the minimum entanglement needed to guarantee contextuality with respect to any set of measurements that form a so-called Bell scenario.