论文标题
分子bose-Einstein冷凝物的非绝热解离：化学反应之间的竞争
Nonadiabatic dissociation of molecular Bose-Einstein condensates: competition between chemical reactions
论文作者
论文摘要
我们提供了一个框架来解决一个通用模型，描述了在非绝热状态下多个分子bose-Einstein冷凝物的解离。单个化学反应之间的竞争会导致对关键成分（例如路径干扰和对称性）的非平凡依赖性，从而影响原子种群的最终分布。我们为涉及四个原子模式的说明性示例模型找到了一个分析解决方案。当系统参数满足$ cpt $对称性时，其中$ c $是充电共轭，$ p $是均等的，而$ t $是时间逆转对称性，我们的解决方案预测，原子模式之间的人口不平衡，这对系统参数呈指数敏感。但是，虚弱的对称性在每个原子模式下都改变了种群，并可以扭转种群失衡。我们的解决方案还显示了原子模式之间的巨大量子相关性，从而导致在多模式挤压状态下自发产生原子。此外，在我们的框架中，一个与时间有关的非铁量子力学自然表现出来，可以在光子系统中实验实现。
We provide a framework to solve generic models describing the dissociation of multiple molecular Bose-Einstein condensates in a nonadiabatic regime. The competition between individual chemical reactions can lead to non-trivial dependence on critical components such as path interference and symmetries, thus, affecting the final distribution of atomic population. We find an analytical solution for an illustrative example model involving four atomic modes. When the system parameters satisfy $CPT$ symmetry, where $C$ is charge conjugation, $P$ is parity, and $T$ is time-reversal symmetry, our solution predicts a population imbalance between atomic modes that is exponentially sensitive to system parameters. However, a weakly broken symmetry alters the population in each atomic mode and can reverse the population imbalance. Our solution also demonstrates a strong quantum correlation between atomic modes that leads to the spontaneous production of atoms in a multi-mode squeezed state. Moreover, in our framework, a time-dependent non-Hermitian quantum mechanics naturally manifests which can alternatively be realized experimentally in photonic systems.
