M
Matthieu Wyart
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 171
Citations - 9426
Matthieu Wyart is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Length scale & Jamming. The author has an hindex of 51, co-authored 158 publications receiving 8051 citations. Previous affiliations of Matthieu Wyart include Centre national de la recherche scientifique & Weizmann Institute of Science.
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Journal ArticleDOI
Discontinuous Shear Thickening without Inertia in Dense Non-Brownian Suspensions
Matthieu Wyart,Michael E. Cates +1 more
TL;DR: It is shown that reasonable assumptions about contact proliferation predict two distinct types of DST in the absence of inertia; the first occurs at densities above the jamming point of frictional particles; here, the thickened state is completely jammed and (unless particles deform) cannot flow without inhomogeneity or fracture.
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Effects of compression on the vibrational modes of marginally jammed solids.
TL;DR: The requirement of stability despite the destabilizing effect of pressure yields a lower bound on the number of extra contact per particle deltaz:deltaz> or =p1/2, which generalizes the Maxwell criterion for rigidity when pressure is present.
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Fluctuations and response in financial markets: the subtle nature of ‘random’ price changes
TL;DR: In this article, the random walk nature of traded prices results from a very delilcated interplay between two opposite tendencies: long-range correlated market orders that lead to super-diffusion (or persistence), and mean revrting limit orders that leads to sub-diffusions (or anti-persistence).
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On the rigidity of amorphous solids
TL;DR: In this article, it was shown that elastic particles present a large excess of vibrational modes at low frequency in comparison with normal solids, called the "boson peak" in the glass literature, and that rigidity is a non-local property of the packing geometry.
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Geometric origin of excess low-frequency vibrational modes in amorphous solids
TL;DR: In this paper, the density of states of a recently simulated system, comprised of weakly compressed spheres at zero temperature, was analyzed, and it was shown that a large excess of low-frequency vibrational modes in comparison with crystalline solids is a necessary consequence of the geometry generic to weakly connected solids.