50 citations · 113 across the 11 of their papers we have counts for
7 papers · 1 filter
Instability cascades in crumpling mylar sheets follow a log-Poisson statistic
Stefan Boettcher, Paula A. Gago
The process of aging following a hard quench into a glassy state is characterized universally, for a wide class of materials, by logarithmic evolution of state variables and a powe…
Density Fluctuations in Granular Piles Traversing the Glass Transition: A Grain-Scale Characterization of the Transition via the Internal Energy
Paula A Gago, Stefan Boettcher
The transition into a glassy state of the ensemble of static, mechanically stable configurations of a tapped granular pile is explored using extensive molecular dynamics simulation…
Extremal fluctuations driving the relaxation in glassy energy landscapes
Stefan Boettcher, Paula A. Gago, Paolo Sibani
Cooperative events requiring anomalously large fluctuations are a defining characteristic for the onset of glassy relaxation across many materials. The importance of such intermitt…
Universal Features of Annealing and Aging in Compaction of Granular Piles
Paula A. Gago, Stefan Boettcher
We explore the compaction dynamics of a granular pile after a hard quench from a liquid into the glassy regime. First, we establish that the otherwise athermal granular pile during…
Structural Evolution of Granular Systems: Theory
Clara C. Wanjura, Paula Gago, Takashi Matsushima +1
A general theory is developed for the evolution of the cell order (CO) distribution in planar granular systems. Dynamic equations are constructed and solved in closed form for seve…
Ergodic-nonergodic transition in tapped granular systems: The role of persistent contacts
Paula A. Gago, Diego Maza, Luis A. Pugnaloni
Static granular packs have been studied in the last three decades in the frame of a modified equilibrium statistical mechanics that assumes ergodicity as a basic postulate. The can…
High intensity tapping regime in a frustrated lattice gas model of granular compaction
Paula A. Gago, Nicolás E. Bueno, Luis A. Pugnaloni
In the frame of a well established lattice gas model for granular compaction, we investigate the high intensity tapping regime where a pile expands significantly during external ex…