摘要翻译：
负比热是一个引人注目的现象，当添加能量时，过程温度降低。在球状星团的重力-热坍缩中观察到了它。我们现在报告在强磁约束下无界平面的电子磁流体动力学(EMH)模型中发现了几乎平行的、周期的、单符号广义涡丝束中的这一现象。我们用最速下降法和平均场性质导出了比热。我们的推导表明，随着温度的升高，系统的总体尺寸呈指数增长，能量下降。负比热的含义是一个失控的反应，导致一个坍塌的内核被一个膨胀的长丝晕包围。
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英文标题：
《Negative Specific Heat in a Quasi-2D Generalized Vorticity Model》
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作者：
T. D. Andersen and C. C. Lim
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最新提交年份：
2007
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分类信息：

一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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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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PDF链接：
https://arxiv.org/pdf/706.3892