English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Nonlinear fluctuating hydrodynamics (NFHD) is a powerful framework forunderstanding transport, but checking its validity with molecular dynamics isstill challenging. Here, we overcome this challenge by developing an effectivescheme for detecting hydrodynamic modes that takes into account the role ofpressure fluctuations. We show that the predictions given by NFHD on therelaxation processes of hydrodynamic modes are valid only when the pressure ofthe system is zero and the pressure fluctuations are weak. For nonvanishingpressure, two other regimes arise as the hydrodynamic modes can respond tosmall and large pressure fluctuations and relax in two additionally distinctmanners. In contrast to the previous finding of two classes, our resultssuggest that there are at least three universality classes of transport inanharmonic chains.

Unconventional Relaxation of Hydrodynamic Modes in Anharmonic Chains