Bulk diffusion in the undamped Frenkel-Kontorova model |
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Authors: | RW Holloway MJ Gillan |
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Institution: | Theoretical Physics Division, AERE Harwell, Didcot, Oxon, OX11 ORA, England |
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Abstract: | We present new simulation results for the undamped Frenkel-Kontorova model. These support the existence of the bulk diffusion coefficient D, which has been called into question by earlier simulation work of Schneider and Stoll. We point out that D can be studied by three independent routes, and we show that these all provide evidence for the existence of D and yield the same numerical value for it in the particular thermodynamic state examined. |
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