RT Journal Article T1 Detection of parity violation in chiral molecules by external tuning of electroweak optical activity A1 Bargueño, Pedro A1 Gonzalo Fonrodona, Isabel A1 Pérez de Tudela, Ricardo AB A proposal is made to measure the parity-violating energy difference between enantiomers of chiral molecules by modifying the dynamics of the two-state system using an external chiral field, in particular, circularly polarized light. The intrinsic molecular parity-violating energy could be compensated by this external chiral field, with the subsequent change in the optical activity. From the observation of changes in the time-averaged optical activity of a sample with initial chiral purity and minimized environment effects, the value of the intrinsic parity-violating energy could be extracted. A discussion is made on the feasibility of this measurement. PB American Physical Society SN 1050-2947 YR 2009 FD 2009-07-23 LK https://hdl.handle.net/20.500.14352/44533 UL https://hdl.handle.net/20.500.14352/44533 LA eng NO ©2009 The American Physical Society. This was funded by the MEC (Spain) under Projects No. CTQ2005-09185-C02-02, No. FIS2004-02461, and No. FIS2007-65382 and supported by Grants No. BES-2006-11976 (P.B.) and No. BES-2006-7454 (R.P.deT.). NO Ministerio de Educación y Ciencia (MEC), España DS Docta Complutense RD 21 ene 2026