David P. DeMille is an American physicist and Professor of Physics at the University of Chicago. He is best known for his use of polardiatomic molecules to search for symmetry-violating effects within the molecules and as a means for manipulating the external properties of the molecules.[2]
His group was the first to accomplish laser cooling of a diatomic molecule, achieved in 2010 using strontiummonofluoride (SrF).[3][4] He is also known for his precise measurements in the ACME EDM Experiment[5] which constrain the upper limit of the electron electric dipole moment using a beam of thorium monoxide, conducted in collaboration with the groups of Gerald Gabrielse and John Doyle at Harvard.[6] DeMille is currently also leading the CeNTREX collaboration, an experiment to measure the nuclear Schiff moment of the thallium nucleus inside a thallium fluoride molecule.[7]