Data for "Two- and many-body physics of ultracold molecules dressed by dual microwave fields"

We investigate the two- and many-body physics of ultracold polar molecules dressed by dual microwaves with distinct polarizations. Using Floquet theory and multichannel scattering calculations, we identify a regime with the largest elastic-to-inelastic scattering ratio, which is favorable for performing evaporative cooling. Furthermore, we derive and subsequently validate an effective interaction potential that accurately captures the dynamics of microwave-shielded polar molecules (MSPMs). We also explore the ground-state properties of the ultracold gases of MSPMs by computing physical quantities such as gas density, condensate fraction, momentum distribution, and second-order correlation. It is shown that the system supports a weakly correlated expanding gas state and a strongly correlated self-bound gas state. Since the dual-microwave scheme introduces an additional control knob and is essential for creating ultracold Bose gases of polar molecules, our work pave the way for studying the two- and many-body physics of the ultracold polar molecules dressed by dual microwaves.我们研究了经极化方式不同的双微波场修饰的超冷极性分子的两体与多体物理。借助弗洛凯理论（Floquet theory）与多通道散射计算，我们确定了弹性与非弹性散射比值最高的调控区域，该区域适用于开展蒸发冷却实验。此外，我们推导并验证了一套有效相互作用势，可精准刻画微波屏蔽极性分子（MSPMs）的动力学行为。我们还通过计算气体密度、凝聚分数、动量分布与二阶关联等物理量，探究了微波屏蔽极性分子超冷气体的基态性质。研究表明，该体系存在弱关联膨胀气体态与强关联自束缚气体态两种物相。由于双微波方案引入了额外的调控手段，且对制备超冷极性分子玻色气体至关重要，本研究为探索经双微波场修饰的超冷极性分子的两体与多体物理铺平了道路。