73 citations · 276 across the 13 of their papers we have counts for
13 papers
Disentangling hierarchical relaxations in glass formers via dynamic eigenmodes
Wensi Sun, Yanshuang Chen, Wencheng Ji +6
Hierarchical dynamics in glass-forming systems span multiple timescales, from fast vibrations to slow structural rearrangements, appearing in both supercooled fluids and glassy sta…
The Role of Excitations in Supercooled Liquids: Density, Geometry, and Relaxation Dynamics
Wencheng Ji, Massimo Pica Ciamarra, Matthieu Wyart
Low-energy excitations play a key role in all condensed-matter systems, yet there is limited understanding of their nature in glasses, where they correspond to local rearrangements…
Local vs. Cooperative: Unraveling Glass Transition Mechanisms with SEER
Massimo Pica Ciamarra, Wencheng Ji, Matthieu Wyart
Which phenomenon slows down the dynamics in super-cooled liquids and turns them into glasses is a long-standing question of condensed-matter. Most popular theories posit that as th…
Toward understanding the depletion of two-level systems in ultrastable glasses
Wencheng Ji
The density of Two-level systems (TLS) controls the low-temperature thermal properties in glasses and has been found to be almost depleted in ultrastable glasses. While this deplet…
Scaling description of creep flow in amorphous solids
Marko Popović, Tom W. J. de Geus, Wencheng Ji +2
Amorphous solids such as coffee foam, toothpaste or mayonnaise display a transient creep flow when a stress is suddenly imposed. The associated strain rate is commonly found to…
Mean-field description for the architecture of low-energy excitations in glasses
Wencheng Ji, Tom W. J. de Geus, Elisabeth Agoritsas +1
In amorphous materials, groups of particles can rearrange locally into a new stable configuration. Such elementary excitations are key as they determine the response to external st…
Thermally activated flow in models of amorphous solids
Marko Popović, Tom W. J. de Geus, Wencheng Ji +1
Amorphous solids yield at a critical value of the imposed stress through a dynamical phase transition. While sharp in athermal systems, the presence of thermal fluctuatio…
Thermal origin of quasi-localised excitations in glasses
Wencheng Ji, Tom W. J. de Geus, Marko Popović +2
Key aspects of glasses are controlled by the presence of excitations in which a group of particles can rearrange. Surprisingly, recent observations indicate that their density is d…
How collective asperity detachments nucleate slip at frictional interfaces
Tom W. J. de Geus, Marko Popović, Wencheng Ji +2
Sliding at a quasi-statically loaded frictional interface can occur via macroscopic slip events, which nucleate locally before propagating as rupture fronts very similar to fractur…
Fast generation of ultrastable computer glasses by minimization of an augmented potential energy
Geert Kapteijns, Wencheng Ji, Carolina Brito +2
We present a model and protocol that enable the generation of extremely stable computer glasses at minimal computational cost. The protocol consists of an instantaneous quench in a…
Theory for the density of interacting quasi-localised modes in amorphous solids
Wencheng Ji, Marko Popović, Tom W. J. de Geus +2
Quasi-localised modes appear in the vibrational spectrum of amorphous solids at low-frequency. Though never formalised, these modes are believed to have a close relationship with o…
Topological Phonon Modes in A Two-Dimensional Wigner Crystal
Wencheng Ji, Junren Shi
We investigate the spin-orbit coupling effect in a two-dimensional Wigner crystal. We show that sufficiently strong spin-orbit coupling and an appropriate sign of g-factor could tr…
Dynamics of the Wigner Crystal of Composite Particles
Junren Shi, Wencheng Ji
Conventional wisdom had long held that a composite particle behaves just like an ordinary Newtonian particle. In this paper, we derive the effective dynamics of a type-I Wigner cry…