Abstract:
The concept of nuclear spin isomers was
already introduced in the early days of quantum mechanics. Despite its importance, not much work has been done
to separate them experimentally by pushing the ratio away
from its equilibrium value. We propose to use ultrashort
laser pulses in a pump–dump-like experiment to enhance
the ratio between different nuclear spin isomers. Exemplary wave packet simulations with optimized femtosecond
pump and dump laser pulses are shown on a quinodimethane derivative to illustrate that the ratio between two different groups of nuclear spin isomers is enhanced.
