Reconfigurable molecular tweezer arrays are a new emerging platform for quantum science. In recent years, significant progress has been made in controlling molecules and developing essential building blocks for quantum simulation and quantum information processing. In this talk, I will present our work on CaF molecular tweezer arrays. Specifically, I will first discuss the observation of coherent spin exchange oscillations between pairs of molecules and creation of Bell states. I will then report our work on Raman sideband cooling of molecules to control their motional degrees of freedom. Lastly, I will present recent results on simulating spin chains in this platform. We extend the native Hamiltonian of the system and realize tunable XXZ and XYZ spin models via Floquet engineering. We observe coherent quantum walks of single spin excitations and dynamics of repulsive magnon bound states in XXZ chains, and coherent pair creation and annihilation dynamics in XYZ chains, paving the way for simulating exotic spin models with molecules.
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