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Título: | Heat flux direction controlled by power-law oscillators under non-Gaussian fluctuations |
Autor: | Colombo, Eduardo H. CSIC ORCID; Defaveri, L. A. C. A.; Anteneodo, Celia | Fecha de publicación: | sep-2019 | Editor: | American Physical Society | Citación: | Physical Review - Section E - Statistical Nonlinear and Soft Matter Physics 100(3): 032118 (2019) | Resumen: | Chains of particles coupled through anharmonic interactions and subject to non-Gaussian baths can exhibit paradoxical outcomes such as heat currents flowing from colder to hotter reservoirs. Aiming to explore the role of generic nonharmonicities in mediating the contributions of non-Gaussian fluctuations to the direction of heat propagation, we consider a chain of power-law oscillators, with interaction potential V(x) |x|α, subject to Gaussian and Poissonian baths at its ends. Performing numerical simulations and addressing heuristic considerations, we show that a deformable potential has bidirectional control over heat flux. | Versión del editor: | http://doi.org/10.1103/PhysRevE.100.032118 | URI: | http://hdl.handle.net/10261/205148 | DOI: | 10.1103/PhysRevE.100.032118 | Identificadores: | doi: 10.1103/PhysRevE.100.032118 e-issn: 2470-0053 issn: 2470-0045 |
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heat_flux_power-law_non-gaussian_fluctuations.pdf | 436,76 kB | Adobe PDF | Visualizar/Abrir |
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