Physicists at MIT have uncovered a new way to test whether or not a material is chiral, and have also found a way to enhance the overall chirality in a large piece of material. The material they used, titanium diselenide (TiSe2), is a transition-metal dichalcogenide (TMD) semimetal that has potential use in quantum devices. The researchers achieved optical chiral induction in TiSe2 by shining light on the material while cooling it below a critical temperature. 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