A general approach to state-dependent optical tweezer traps for polar molecules

Abstract

State-dependent optical tweezers can be used to trap a pair of molecules with a separation much smaller than the wavelength of the trapping light, greatly enhancing the dipole-dipole interaction between them. Here we describe a general approach to producing these state-dependent potentials using the tensor part of the ac Stark shift and show how it can be used to carry out two-qubit gates between pairs of molecules. The method is applicable to broad classes of molecules including bialkali molecules produced by atom association and those amenable to direct laser cooling.

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• Quantum-Enhanced Metrology for Molecular Symmetry Violation using Decoherence-Free Subspaces
• Fast optical transport of ultracold molecules over long distances
• Probing the interaction energy of two ${}^{85}$Rb atoms in an optical tweezer via spin-motion coupling
• Scalable platform for qudit-based quantum computing using polar molecules
• Trapping polar molecules by surface acoustic waves