2016/06/06 by Andrew P. Proudian, Proudian, Andrew P., Susanta K. Sarkar +1
Physics and Astronomy · Materials Science · #Advanced Thermodynamics and Statistical Mechanics #Advanced Thermoelectric Materials and Devices #Thermal properties of materials
paper · pdf · doi:10.48550/arxiv.1606.01997
Violations of the second law of thermodynamics for small systems well below\nthe thermodynamic limit has already been experimentally observed. However, the\neffects of such violations on experimentally measurable quantities have not\nbeen studied in detail. Here we report the effect of transient violations,\ni.e., spontaneous transfer of heat from cold to hot objects, on heat transfer\nin silicon nanowire by modeling the violations as a Poisson process. Our\nmodeling and simulations show that it is increasingly difficult to cool down\nthe nanoscale objects to the bath temperature, there is a transition from power\nlaw to exponential behavior, and the fluctuations have inverse square law\ndependence on number of sites.\n