摘要
运用推广的FKM方法对一维FPU-β介电原子链的热传导特性进行了研究,在一定的条件下,分别得到了热流、热导率和局域动能的近似表达式。通过数值模拟发现,不同的边界条件、非线性相互作用对热传导特性有很大的影响。
In the thesis, the extended mean - field Ford - Kac - Mazur formalism has been proposed for the study of quantum heat transport through an 1D one - dimensional Fermi - Pasta - Ulam （FPU） dielectric chain connected to two reservoirs. The expressions of local kinetic energy, heat current and conductivity were got. At last the numerical simulation has been taken in- to account. We found the boundaries and the FPU nonlinear interactions have played important role in thermal transport.
出处
《湖北师范学院学报（自然科学版）》
2009年第4期16-19,共4页
Journal of Hubei Normal University(Natural Science)
基金
湖北师范学院科研项目(2007D22)
