期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 18, 页码 4029-4032出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.4029
关键词
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We examine the interplay of surface and volume effects in systems undergoing heat flow. In particular. we compute the thermal conductivity in the Fermi-Pasta-Ulam beta model as a function of temperature and lattice size, and scaling arguments are used to provide analytic guidance. From this we show that boundary temperature jumps can be quantitatively understood, and that they play an important role in determining the dynamics of the system, relating soliton dynamics, kinetic theory, and Fourier transport.
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