Mpemba effect in an anisotropically driven granular gas

Autor:	V. V. Prasad, R. Rajesh, Apurba Biswas
Rok vydání:	2021
Předmět:	Physics::Popular Physics Molecular dynamics Materials science Statistical Mechanics (cond-mat.stat-mech) Chemical physics FOS: Physical sciences General Physics and Astronomy Mpemba effect Condensed Matter - Statistical Mechanics
Zdroj:	Europhysics Letters. 136:46001
ISSN:	1286-4854 0295-5075
DOI:	10.1209/0295-5075/ac2d54
Popis:	We demonstrate the existence, as well as determine the conditions, of a Mpemba effect - a counterintuitive phenomenon where a hotter system equilibrates faster than a cooler system when quenched to a cold temperature - in anisotropically driven granular gases. In contrast to earlier studies of Mpemba effect in granular systems, the initial states are stationary, making it a suitable system to experimentally study the effect. Our theoretical predictions for the regular, inverse and strong Mpemba effects agree well with results of event-driven molecular dynamics simulations of hard discs. Comment: 5 pages, 4 figures and supplemental material
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e014d68b7d48fccf17766109df287857 https://doi.org/10.1209/0295-5075/ac2d54 Zobrazit plný text záznamu