Bose-Einstein Condensate of Trimers Dressed by Atom-Dimer Cooper Pairs

Two-body interactions and decay of three-level Rydberg-dressed atoms

We theoretically analyze the interactions and decay rates for atoms dressed by multiple laser fields to strongly interacting Rydberg states using a quantum master equation approach. In this framework a comparison of two-level and three-level Rydberg-dressing schemes is presented. We identify a resonant enhancement of the three-level dressed interaction strength which originates from cooperative multiphoton couplings as well as small distance dependent decay rates. In this regime the soft-core shape of the potential is independent of the sign of the bare Rydberg-Rydberg interaction, while its s…

微波缀饰极性分子的有效势与超流性

Effective potential and superfluidity of microwave-dressed polar molecules

本文解析推导了微波缀饰极性分子的有效势，验证其散射性质，并计算了NaK气体中BCS配对的临界温度，表明该势适用于研究分子气体的多体物理与超流性。

New Directions in Degenerate Dipolar Molecules via Collective Association

We survey results on the creation of heteronuclear Fermi molecules by tuning a degenerate Bose-Fermi mixture into the neighborhood of an association resonance, either photoassociation or Feshbach, as well as the subsequent prospects for Cooper-like pairing between atoms and molecules. In the simplest case of only one molecular state, corresponding to either a Feshbach resonance or one-color photoassociation, the system displays Rabi oscillations and rapid adiabatic passage between a Bose-Fermi mixture of atoms and fermionic molecules. For two-color photoassociation, the system admits stimulate…