Coherent Quantum Control of $S_2\leftrightarrow S_1$ Internal Conversion in Pyrazine via $S_0\to S_2/S_1$ Weak Field Excitation

Timur Grinev, Moshe Shapiro, Paul Brumer

Coherent control of internal conversion (IC) between the first ($S_1$) and second ($S_2$) singlet excited electronic states in pyrazine, where the $S_2$ state is populated from the…