Effective potential and superfluidity of microwave-dressed polar molecules

Abstract

For microwave-dressed polar molecules, we analytically derive an intermolecular potential composed of an anisotropic van der Waals shielding core and a long-range dipolar interaction. We validate this effective potential by comparing its scattering properties with those calculated using the full multi-channel interaction potential. It is shown that scattering resonances can be induced by a sufficiently strong microwave field. We also show the power of the effective potential in the study of many-body physics by calculating the critical temperature of the Bardeen-Cooper-Schrieffer pairing in the microwave-dressed NaK gas. It turns out that the effective potential is well-behaved and extremely suitable for studying the many-body physics of the molecular gases. Our results pave the way for the studies of the many-body physics of the ultracold microwave-dressed molecular gases.

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• Nonequilibrium quench dynamics of Bose-Einstein condensates of microwave-shielded polar molecules
• A quantum Monte Carlo based density functional for Dysprosium dipolar system
• Synthetic Mutual Gauge Field in Microwave-Shielded Polar Molecular Gases
• Effective potential and scattering length of shielding polar molecules
• Genetics-based deperturbation analysis for the spin-orbit coupled ${\mathrm{A}}^1{\Sigma }^{+}$ and ${\mathrm{b}}^3{\Pi }_{0^{+}}$ states of LiRb
• Symmetry and Self-Bound Droplets in Dipolar Molecular Gases
• Family of self-dual quasicrystals with critical Phases
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics
• Reflections on future problems in cluster science
• High-flux cold lithium-6 and rubidium-87 atoms from compact two-dimensional magneto-optical traps
• Efimov Effect in Ultracold Microwave-Shielded Polar Molecules
• High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays