论文标题
在环形腔中的迪克超高超高超高超级固体阶段
Self-ordered supersolid phase beyond Dicke superradiance in a ring cavity
论文作者
论文摘要
以晶体顺序的超流体和远程空间周期性为特征的超滤膜相对于从凝结物理学到超速原子物理学的许多科学分支至关重要。在这里，我们研究了一个自级的棋盘超固相位，该相位源自动态自旋轨道耦合，用于横向泵送的原子玻色子凝结物冷凝物被困在环腔中，对应于超级抗tavis-cummings阶段过渡。特别是，与实验实现的晶格超固体相比，观察到了未阻尼的无间隙巨石模式，该晶格具有与Dicke超赞的宽大旋转模式相比。这种零能量模式揭示了自我排序的超级阶段的刚性，该相自发打破了连续的翻译对称性。我们的工作将通过在可控的光腔中利用动力学旋转轨道耦合来强调探索长寿命超固体物质的重要机会。
The supersolid phase characterized by the superfluid and long-range spatial periodicity of crystalline order is central to many branches of science ranging from condensed matter physics to ultracold atomic physics. Here we study a self-ordered checkerboard supersolid phase originating from dynamical spin-orbit coupling for a transversely pumped atomic Bose-Einstein condensate trapped in a ring cavity, corresponding to a superradiant anti-Tavis-Cummings phase transition. In particular, an undamped gapless Goldstone mode is observed in contrast to the experimentally realized lattice supersolid with a gapped roton mode for Dicke superradiance. This zero energy mode reveals the rigidity of the self-ordered superradiant phase, which spontaneously breaks a continuous translational symmetry. Our work will highlight the significant opportunities for exploring long-lived supersolid matter by utilizing dynamical spin-orbit coupling in controllable optical cavities.
