原子-腔系统中的光诱导相干性
Light-induced coherence in an atom-cavity system
摘要：
我们证明了光诱导形成的相干性在一个冷原子气体系统，利用抑制竞争密度波（DW）的顺序。将凝聚态原子置于光腔中，用外部光驻波泵浦，产生由光子散射引起的长程相互作用，并在临界泵浦强度以上产生DW阶。我们发现，光致泵浦波的时间调制可以抑制这种DW顺序和恢复相干。这建立了一个基本原则的动态控制的竞争订单类似于高$T_c$铜酸盐的光致超导性的假设机制。
英文摘要：
We demonstrate light-induced formation of coherence in a cold atomic gas system that utilizes the suppression of a competing density wave (DW) order. The condensed atoms are placed in an optical cavity and pumped by an external optical standing wave, which induces a long-range interaction mediated by photon scattering and a resulting DW order above a critical pump strength. We show that light-induced temporal modulation of the pump wave can suppress this DW order and restore coherence. This establishes a foundational principle of dynamical control of competing orders analogous to a hypothesized mechanism for light-induced superconductivity in high-$T_c$ cuprates.
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