论文标题
全息一阶相变的动力学
Quench Dynamics in Holographic First-Order Phase Transition
论文作者
论文摘要
在这项工作中，我们研究了在一阶相变的全息模型中从相位分离中淬灭状态的实时动力学。除了典型的相位分离和高能量的最终状态外，我们还发现了一个新型的动力学过程，该过程将系统驱动到狭窄的淬灭参数范围内的低温超冷的最终状态。在完全非线性动力学期间还揭示了临界行为。在具有临界参数的突然淬灭之后，可以将相分离吸引到临界核。具体而言，临界核将随后缩小尺寸，最终在超临界参数中消失，在该参数中实际上将系统过冷，温度低于初始参数。而对于亚临界参数，核将在大小上生长，最后改革一个相分离，其中吸收的淬灭能反映在潜热的增量中。
In this work, we investigate the real-time dynamics of quenching a state from phase separation in a holographic model of first-order phase transition. In addition to the typical phase-separated and high-energy final states, we have discovered a novel dynamical process that drives the system to a low-temperature supercooled final state within a narrow range of quench parameters. The critical behavior is also revealed during the fully non-linear dynamics. Following a sudden quench with critical parameters, the phase separation can be attracted to a critical nucleus. Specifically, the critical nucleus will subsequently shrink in size and eventually disappear for super-critical parameters, where the system is actually supercooled with a temperature lower than the initial one. While for sub-critical parameters, the nucleus will grow in size and finally reform a phase separation, where the absorbed quenching energy is reflected in the increment of the latent heat.
