人体抗寒机制及微观解释

本文从统计物理学角度用“有序化”和“熵”的概念解释了抗寒的微观机制,提出了“旋子模型”和“旋子流假说”,较科学地阐明了气功的外气现象;应用热辐射有关理论和生物物理学提出“皮肤温度下降”和“产热率提高”等基本观点,并以此作为抗寒理论的两个支撑点。根据上述论点,本文首次提出了两种生命过程(顺过程和逆过程),为人体身体素质的整体提高找到了某些理论依据。

Magnetization of a Gapped Spin 1/2 Antiferromagnetic Ising Chain near the Critical External Field

We study the magnetization of gapped spin 1/2 XXZ Heisenberg Ising chains and calculate the scattering length among massive spinons. We obtain the magnetization close to the critical external magnetic field. The leading correction term determined by the scattering length among massive spinons is given. Our results are in agreement with exact results and with experimental results. We show that the deviation from the massive free hard core boson picture can be accounted very well by the leading correction term due to the spinon-spinon interaction. We show that the deviation increases along with the increasing of the Ising term.