Zobrazeno 21 - 30
of 791
pro vyhledávání: '"Procaccia, Itamar"'
Publikováno v:
Phys. Rev. Lett. 126, 075501 (2021)
Theoretical treatments of frictional granular matter often assume that it is legitimate to invoke classical elastic theory to describe its coarse-grained mechanical properties. Here we show, based on experiments and numerical simulations, that this i
Externí odkaz:
http://arxiv.org/abs/2010.03239
Publikováno v:
Phys. Rev. B 103, 054110 (2021)
This paper investigates whether in frictional granular packings, like in Hamiltonian amorphous elastic solids, the stress autocorrelation matrix presents long range anisotropic contributions just as elastic Green's functions. We find that in a standa
Externí odkaz:
http://arxiv.org/abs/2008.12917
Autor:
Das, Prasenjit, Procaccia, Itamar
Publikováno v:
Phys. Rev. Lett. 126, 085502 (2021)
It has been established that the low frequency quasi-localized modes of amorphous solids at zero temperature exhibit universal density of states, depending on the frequencies as $D(\omega) \sim \omega^4$. It remains an open question whether this univ
Externí odkaz:
http://arxiv.org/abs/2008.10259
Publikováno v:
Phys. Rev. Lett. 126, 085501 (2021)
The rupture of a polymer chain maintained at temperature $T$ under fixed tension is prototypical to a wide array of systems failing under constant external strain and random perturbations. Past research focused on analytic and numerical studies of th
Externí odkaz:
http://arxiv.org/abs/2008.00970
Publikováno v:
Phys. Rev. B 102, 014202 (2020)
Low frequency quasi-localized modes of amorphous glasses appear to exhibit universal density of states, depending on the frequencies as $D(\omega) \sim \omega^4$. To date various models of glass formers with short range binary interaction, and networ
Externí odkaz:
http://arxiv.org/abs/2005.06197
Publikováno v:
Phys. Rev. E 102, 010603 (2020)
The extreme slowing down associated with glass formation in experiments and in simulations results in serious difficulties to prepare deeply quenched, well annealed, glassy material. Recently, methods to achieve such deep quenching were proposed, inc
Externí odkaz:
http://arxiv.org/abs/2003.14190
Publikováno v:
Phys. Rev. Lett. 125, 085501 (2020)
It was recently shown that different simple models of glass formers with binary interactions define a universality class in terms of the density of states of their quasi-localized low-frequency modes. Explicitly, once the hybridization with standard
Externí odkaz:
http://arxiv.org/abs/2003.07614
Plastic Instabilities in Charged Granular Systems: Competition between Elasticity and Electrostatics
Publikováno v:
Phys. Rev. E 101, 052903 (2020)
Electrostatic theory preserves charges, but allows dipolar excitations. Elasticity theory preserves dipoles, but allows quadrupolar (Eshelby like) plastic events. Charged amorphous granular systems are interesting in their own right; here we focus on
Externí odkaz:
http://arxiv.org/abs/2001.10903
Publikováno v:
Phys. Rev. E 101, 062902 (2020)
Catastrophic events in Nature can be often triggered by small perturbations, with "remote triggering" of earthquakes being an important example. Here we present a mechanism for the giant amplification of small perturbations that is expected to be gen
Externí odkaz:
http://arxiv.org/abs/2001.06862
Publikováno v:
Phys. Rev. E 100, 060602 (2019)
Plastic instabilities in amorphous materials are often studied using idealized models of binary mixtures that do not capture accurately molecular interactions and bonding present in real glasses. Here we study atomic scale plastic instabilities in a
Externí odkaz:
http://arxiv.org/abs/1910.10501