Abstract
Ultracold polar molecules are an ideal platform for studying many-body physics with long-range dipolar interactions. Experiments in this field have progressed enormously, and several groups are pursuing advanced apparatus for manipulation of molecules with electric fields as well as single-atom-resolved in situ detection. Such detection has become ubiquitous for atoms in optical lattices and tweezer arrays, but has yet to be demonstrated for ultracold polar molecules. Here we present a proposal for the implementation of site-resolved microscopy for polar molecules, and specifically discuss a technique for spin-resolved molecular detection. We use numerical simulation of spin dynamics of lattice-confined polar molecules to show how such a scheme would be of utility in a spin-diffusion experiment.
Highlights
Ultracold polar molecules present an idyllic platform for emulating quantum magnetism in manybody long-range interacting systems [1,2,3,4]
Quantum gas microscopy of atoms is made possible through high-resolution imaging in a deep optical lattice that freezes atomic motion during imaging, along with laser cooling which prevents atoms from heating while scattering many photons [8,9]
Equilibrium spin systems, and describe how the investigation of such dynamics would proceed under a spin-resolved quantum gas microscope. 40K87Rb [21] is used as an example throughout, but these methods are general, and they can be applied to other ultracold bialkali molecular species [22,23,24,25,26]
Summary
Ultracold polar molecules present an idyllic platform for emulating quantum magnetism in manybody long-range interacting systems [1,2,3,4] This requires precise state preparation [5, 6], large DC electric fields to control the strength of the Ising interaction, and precise read-out based on rotational spectroscopy and/or high resolution in situ detection to measure spatial correlations [7]. Quantum gas microscopy of atoms is made possible through high-resolution imaging in a deep optical lattice that freezes atomic motion during imaging, along with laser cooling which prevents atoms from heating while scattering many photons [8,9] Such an imaging process scrambles the hyperfine state of the atoms, thereby rendering their spin degree of freedom undetectable. Equilibrium spin systems, and describe how the investigation of such dynamics would proceed under a spin-resolved quantum gas microscope. 40K87Rb [21] is used as an example throughout, but these methods are general, and they can be applied to other ultracold bialkali molecular species [22,23,24,25,26]
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