准二维广义涡度模式中的负Specific Heat
Negative Specific Heat in a Quasi-2D Generalized Vorticity Model
摘要：
负比热是一种引人注目的现象，其中过程在增加能量时温度降低。在球状星团的重力-热坍缩中也观察到了这种现象。我们现在报告发现这种现象在束的近平行的，周期性的，单符号广义涡丝在电子磁流体动力学（EMH）模型的无界平面下强磁约束。我们使用最速下降法和平均场性质推导出比热。我们的推导表明，随着温度的升高，系统的整体尺寸呈指数增长，能量下降。负比热的含义是一个失控的反应，导致一个坍缩的内核被一个膨胀的丝状晕包围。
英文摘要：
Negative specific heat is a dramatic phenomenon where processes decrease in temperature when adding energy. It has been observed in gravo-thermal collapse of globular clusters. We now report finding this phenomenon in bundles of nearly parallel, periodic, single-sign generalized vortex filaments in the electron magnetohydrodynamic (EMH) model for the unbounded plane under strong magnetic confinement. We derive the specific heat using a steepest descent method and a mean field property. Our derivations show that as temperature increases, the overall size of the system increases exponentially and the energy drops. The implication of negative specific heat is a runaway reaction, resulting in a collapsing inner core surrounded by an expanding halo of filaments.
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