Evaporation of microwave-shielded polar molecules to quantum degeneracy

  title={Evaporation of microwave-shielded polar molecules to quantum degeneracy},
  author={Andreas Schindewolf and Roman Bause and Xing-Yan Chen and Marcel Duda and Tijs Karman and Immanuel Bloch and Xin-Yu Luo},
  pages={677 - 681}
Ultracold polar molecules offer strong electric dipole moments and rich internal structure, which makes them ideal building blocks to explore exotic quantum matter1–9, implement quantum information schemes10–12 and test the fundamental symmetries of nature13. Realizing their full potential requires cooling interacting molecular gases deeply into the quantum-degenerate regime. However, the intrinsically unstable collisions between molecules at short range have so far prevented direct cooling… 

Field-linked resonances of polar molecules

Scattering resonances are an essential tool for controlling interactions of ultracold atoms and molecules. However, conventional Feshbach scattering resonances [1], which have been extensively

Probing site-resolved correlations in a spin system of ultracold molecules

Synthetic quantum systems with interacting constituents play an important role in quantum information processing and in elucidating fundamental phenomena in many-body physics. Following impressive

Tunable itinerant spin dynamics with polar molecules

Strongly interacting spins underlie many intriguing phenomena and applications ranging from quantum magnetism and spin transport to precision quantum sensing and quantum information processing 1-4 .

Model for two-body collisions between ultracold dipolar molecules around a Förster resonance in an electric field

We propose a one-channel, simple model to describe the dynamics of ultracold dipolar molecules around a F¨orster resonance. Slightly above a specific electric field, a collisional shielding can take

Thermal conductivity of an ultracold paramagnetic Bose gas

We analytically derive the transport tensor of thermal conductivity in an ultracold, but not yet quantum degenerate, gas of Bosonic lanthanide atoms using the Chapman-Enskog procedure. The tensor

Ultracold Sticky Collisions: Theoretical and Experimental Status

Collisional complexes, which are formed as intermediate states in molecular collisions, are typically short-lived and decay within picoseconds. However, in ultracold collisions involving bialkali

Towards improved loading, cooling, and trapping of molecules in magneto-optical traps

Abstract. Recent experiments have demonstrated direct cooling and trapping of diatomic and triatomic molecules in magneto-optical traps (MOTs). However, even the best molecular MOTs to date still

Symmetry breaking in sticky collisions between ultracold molecules

Ultracold molecules undergo “sticky collisions” that result in loss even for chemically nonreactive molecules. Sticking times can be enhanced by orders of magnitude by interactions that lead to

Heating a quantum dipolar fluid into a solid

Raising the temperature of a material enhances the thermal motion of particles. Such an increase in thermal energy commonly leads to the melting of a solid into a fluid and eventually vaporises the

Optical Trapping of a Polyatomic Molecule in an $\ell$-Type Parity Doublet State

We report optical trapping of a polyatomic molecule, calcium monohydroxide (CaOH). CaOH molecules from a magneto-optical trap are sub-Doppler laser cooled to 20 ( 3 ) µ K in free space and loaded