Dalila Robledo L&S Sciences
Photoassociation and STIRAP on Ultracold LiRb Molecules
The experiment that I will be working on this summer is currently being set up to prepare lithium-rubidium ultracold molecules. Ultracold molecules are those whose kinetic temperature as a measure of their velocity distribution is close to zero Kelvin, the regime where quantum effects of matter dominate.
An interesting property of this particular molecule is its intrinsically large permanent dipole moment, which allows it to strongly interact with neighboring molecules. Strong tunable interactions allow for the realization of quantum entangling operations, so understanding and controlling molecular systems contributes to both quantum information as well as quantum simulation.
My project involves setting up a Titanium-Sapphire laser in order to identify an intermediate state for transferring a population between two molecular states with high fidelity. Namely, we will first use this laser on a cloud of lithium and rubidium atoms to drive transitions to electronically excited molecular states of LiRb. Once we identify the appropriate transitions, we can further explore coherent two-photon transitions to the absolute ground state.