论文标题
从参数驱动的冷凝物中增强颗粒发射的共振剂在一维晶格中
Resonant enhancement of particle emission from a parametrically driven condensate in a one-dimensional lattice
论文作者
论文摘要
在最近的实验中，我们研究了在一维晶格中从bose-Einstein凝结物中发射的颗粒发射，在该晶格中，相互作用强度定期调节。调制相互作用参数会激发集体模式，从而导致密度振荡。这些集体振荡反过来驱动粒子发射。这个多步骤的过程扩大了驱动器，从而产生较大的粒子喷射。我们发现，如实验中所见，排放速率的幅度依赖性具有特征性的阈值行为。
Motivated by recent experiments, we investigate particle emission from a Bose-Einstein condensate in a one-dimensional lattice, where the interaction strength is periodically modulated. The modulated interactions parametrically excite a collective mode, leading to density oscillations. These collective oscillations in turn drive particle emission. This multistep process amplifies the drive, producing larger particle jets. We find that the amplitude dependence of the emission rate has a characteristic threshold behavior, as seen in experiments.
