Leggett inequality
Experimentally violated inequality of correlations of entangled particles / From Wikipedia, the free encyclopedia
In physics, the Leggett inequalities,[1] named for Anthony James Leggett, who derived them, are a related pair of mathematical expressions concerning the correlations of properties of entangled particles. (As published by Leggett, the inequalities were exemplified in terms of relative angles of elliptical and linear polarizations.)