Searches for Parity and Time Reversal Violation with Molecules

The techniques of atomic, molecular, and optical physics provide useful tools to probe hadronic and semileptonic interactions that violate discrete symmetries. The effects of parity-violating interactions are amplified by many orders of magnitude in molecules, relative to atoms, due to the presence of close-lying states of opposite parity associated with their rotational states. Ongoing, revolutionary advances in methods to control and measure the quantum states of molecules are enabling very rapid progress in the ability to probe various parity-violating interactions. This talk will describe several ongoing experimental efforts aiming to detect simulataneous parity (P) and time-reversal (T) violating interactions in molecules: ACME, a search for the electron electric dipole moment; CeNTREX, a search for the proton electric dipole moment; and REDRUM, a new experiment to search for P- and T-violating hadronic interactions. In the coming few years these experiments will probe for well-motivated new physics beyond the Standard Model, at scales far in excess of the direct reach of the Standard Model.