Speaker
Description
Creating arrays of ultracold molecules for quantum simulation of many-body systems is rapidly becoming a reality [1,2]. A key requirement for high-fidelity simulation of various spin models is the ability to simultaneously recover the population in each spin state. Using a series of manipulations proposed in [3], we experimentally demonstrate that two rotational states of ultracold RbCs molecules can be mapped to their constituent atoms: a molecule in the upper (lower) rotational state is detected as a Cs (Rb) atom in our imaging. We load a 2D optical lattice with over a thousand molecules and, by projecting an addressing tweezer, imprint a localized spin impurity by shielding a region of the gas from microwave excitation to the upper rotational state. Using optical microscopy, we then spatially resolve this impurity with single-molecule resolution while simultaneously imaging the rest of the gas in the other spin state.
[1] - Cornish, S. L., Tarbutt, M. R., & Hazzard, K. R. (2024). Quantum computation and quantum simulation with ultracold molecules. Nature Physics, 20(5), 730-740.
[2]- Christakis, L., Rosenberg, J. S., Raj, R., Chi, S., Morningstar, A., Huse, D. A., ... & Bakr, W. S. (2023). Probing site-resolved correlations in a spin system of ultracold molecules. Nature, 614(7946), 64-69.
[3] - Covey, J. P., De Marco, L., Acevedo, Ó. L., Rey, A. M., & Ye, J. (2018). An approach to spin-resolved molecular gas microscopy. New Journal of Physics, 20(4), 043031.
