Field-induced long-lived supermolecules

Abstract

We demonstrate that the long-lived bound states (super-molecules) can exist in the dilute limit when we tune the shape of effective potential between polar molecules by an external microwave field. Binding energies, average sizes, and phase diagrams for both s-orbital (bosons) and p-orbital (fermions) dimers are studied, together with bosonic trimer states. We explicitly show that the non- adiabatic transition rate can be easily tuned small for such ground state super-molecules, so that the system can be stable from collapse even near the associated potential resonance. Our results, therefore, suggest a feasible cold molecule system to investigate both novel few-body and many-body physics (for example, the p-wave BCS-BEC crossover for fermions and the paired condensate for bosons) that can not be easily accessed in single species atomic gases.

4 pages, 4 figures

References in corpus (15)

• A High Phase-Space-Density Gas of Polar Molecules
• Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
• Resonantly-paired fermionic superfluids
• Cold polar molecules in 2D traps: Tailoring interactions with external fields for novel quantum phases
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Quantum fluids of self-assembled chains of polar molecules
• Anisotropic Fermi Superfluid via p-wave Feshbach Resonance
• Interlayer superfluidity in bilayer systems of fermionic polar molecules
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• Quantum phase transitions of polar molecules in bilayer systems
• The Efimov effect for three interacting bosonic dipoles
• Universal low-energy properties of three two-dimensional particles
• Pseudo-potential of a power-law decaying interaction in two-dimensional systems
• Few-Body Bound Complexes in One-dimensional Dipolar Gases and Non-Destructive Optical Detection
• Interaction-induced first order correlation between spatially-separated 1D dipolar fermions

Cited by in corpus (9)

• Ultracold field-linked tetratomic molecules
• P-wave Superfluidity by Blockade Effects in a Rydberg-Dressed Fermi Gas
• Occurrence conditions for two-dimensional Borromean systems
• Quantum phases of quadrupolar Fermi gases in coupled one-dimensional systems
• Classical crystal formation of dipoles in two dimensions
• Effective potential and scattering length of shielding polar molecules
• Ultracold coherent control of molecular collisions at a Förster resonance
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics
• Efimov Effect in Ultracold Microwave-Shielded Polar Molecules