Kauzmann paradox: A possible crossover due to diminishing local excitations

XY Gao, CY Ong, CS Lee, CT Yip, HY Deng, CH Lam - Physical Review B, 2023 - APS
The configurational entropy of supercooled liquids extrapolates to zero at the Kauzmann
temperature, causing a crisis called the Kauzmann paradox. Here, using a class of …

Diffusion-coefficient power laws and defect-driven glassy dynamics in swap acceleration

G Gopinath, CS Lee, XY Gao, XD An, CH Chan… - Physical Review Letters, 2022 - APS
Particle swaps can drastically accelerate dynamics in glass. The mechanism is expected to
be vital for a fundamental understanding of glassy dynamics. To extract defining features, we …

The distinguishable-particle lattice model of glasses in three dimensions

B Li, CS Lee, XY Gao, HY Deng, CH Lam - Soft Matter, 2024 - pubs.rsc.org
The nature of glassy states in realistic finite dimensions is still under fierce debate. Lattice
models can offer valuable insights and facilitate deeper theoretical understanding. Recently …

Surface mobility gradient and emergent facilitation in glassy films

Q Zhai, XY Gao, CS Lee, CY Ong, K Yan, HY Deng… - Soft matter, 2024 - pubs.rsc.org
Confining glassy polymers into films can substantially modify their local and film-averaged
properties. We present a lattice model of film geometry with void-mediated facilitation …

Heat capacity and relaxation dynamics of glassy films: A lattice model study

Q Zhai, XY Gao, HY Deng, CS Lee, S Yang, K Yan… - Physical Review E, 2025 - APS
We study the calorimetric properties and structural relaxation of glassy films using a
distinguishable particle lattice model (DPLM). We determine the glass transition temperature …

Relating fragile-to-strong transition to fragile glass via lattice model simulations

CY Ong, CS Lee, XY Gao, Q Zhai, Z Yu, R Shi… - Physical Review E, 2024 - APS
Glass formers are, in general, classified as strong or fragile depending on whether their
relaxation rates follow Arrhenius or super-Arrhenius temperature dependence. There are …

Emergent facilitation by random constraints in a facilitated random walk model of glass

LSI Lam, HY Deng, WB Zhang, U Nwankwo… - arxiv preprint arxiv …, 2024 - arxiv.org
The physics of glass has been a significant topic of interest for decades. Dynamical
facilitation is widely believed to be an important characteristic of glassy dynamics, but the …

Distinguishable-particle Glassy Crystal: the simplest molecular model of glass

LSI Lam, G Gopinath, Z Zhao, S Wang, CS Lee… - arxiv preprint arxiv …, 2024 - arxiv.org
The nature of glassy dynamics and the glass transition are long-standing problems under
active debate. In the presence of a structural disorder widely believed to be an essential …

Towards Relating Fragile-To-Strong Transition to Fragile Glass

CY Ong, CS Lee, XY Gao, Q Zhai, R Shi… - arxiv preprint arxiv …, 2022 - arxiv.org
Glass formers are in general classified as strong or fragile depending on whether their
relaxation rates follow Arrhenius or super-Arrhenius temperature dependence. There are …

Connected Network Model for the Mechanical Loss of Amorphous Materials

S Blaber, D Bruns, J Rottler - arxiv preprint arxiv:2406.17978, 2024 - arxiv.org
Mechanical loss in amorphous solids at low frequencies is commonly attributed to thermally
activated transitions of isolated two-level systems (TLS) that come in resonance with a …