Experimental Setup to Measure ΔPVE in a Time Resolved Experiment
The time resolved experiment to measure the parity violating energy difference ΔPVE in molecules can be
divided into three steps:
- Preparation of the initial state in an absorption/stimulated emission process with two continuous wave lasers
in a molecular beam.
The power of the two lasers has to be high enough to guarantee a population transfer of close to 100% and the
required frequency stability of the lasers is defined by the line width of the detection step for the
molecules arriving at the detection zone. These line widths are typically 100 kHz or even less depending
on the length of the interaction free evolution time.
- Interaction free evolution of the prepared molecules in a molecular beam. To reduce destructive effects from
intermolecular collisions the paricle density and the acceptable velocity spread of the molecular beam has to be reduced.
Where the acceptable peryurbations depend on the required evolution time of milliseconds to seconds.
- Sensitive detection of the molecules with the opposite parity (as compared to the one of the preparation step)
in a REMPI process. Single molecule detection would allow for longer evolution times.
Experimental Setup:
