Mode coupling theory for sheared granular liquids
Koshiro Suzuki, Hisao Hayakawa
TL;DR
This paper develops a mode coupling theory for sheared granular liquids, highlighting the importance of current correlations and predicting the disappearance of the density correlator plateau except in elastic limits, aligning with simulations.
Contribution
It introduces a mode coupling framework specifically for sheared granular liquids, emphasizing the role of current correlations and their impact on density fluctuations.
Findings
Current correlations are crucial in sheared granular liquids.
The density correlator plateau disappears in most cases.
The plateau reappears in the elastic limit.
Abstract
Sheared granular liquids are studied by the mode coupling theory. It is shown that, in contrast to thermostatted systems, current correlations play an essential role in the dynamics. The theory predicts that the plateau of the density time-correlator disappears for most situations, while it appears in the elastic limit. The result is compatible with molecular dynamics simulations.
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