微波控制的相互作用与静电场屏蔽极性分子的条纹形成
Microwave-controlled interactions and stripe formation of static-field-shielded polar molecules
- Mathematical Physics and NanoLund, LTH, Lund University(数学物理与纳米隆德,理工学院,隆德大学)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
本文研究静电场与椭圆极化微波场屏蔽的极性分子,推导有效相互作用势,发现准二维约束下超固态以条纹相出现,即使微波椭圆度较小。
AI中文摘要:
我们研究了极性分子,其中短程损失通过涉及静电场和椭圆极化微波场的屏蔽方案被抑制。利用微扰理论,我们推导了有效相互作用势,并对照耦合通道计算进行了验证。我们确定了一个参数区域,在该区域中双体损失被强烈抑制,并且稀释分子玻色-爱因斯坦凝聚体的扩展平均场描述是合理的。我们计算了集体激发,并表明有趣的是,在准二维约束下,超固态即使在微波椭圆度较小的情况下也以条纹相的形式出现。
英文摘要:
We study polar molecules where short-range losses are suppressed by a shielding scheme involving a static electric field and an elliptically polarized microwave field. Using perturbation theory, we derive the effective interaction potential and validate it against coupled channel calculations. We identify a parameter regime where two-body losses are strongly suppressed and the extended mean-field description of dilute molecular Bose-Einstein condensates is justified. We calculate the collective excitations and show that intriguingly, supersolidity in quasi-two-dimensional confinement emerges as a stripe phase even at small values of microwave ellipticity.