Relationship between Entropic Bottleneck in Free Energy Landscape, Nonexponential Relaxation and Fragility of Glass-Forming Liquids
| dc.creator | Chakrabarti, Dwaipayan | |
| dc.creator | Bagchi, Biman | |
| dc.date | 2003-03-09 | |
| dc.date.accessioned | 2026-07-07T02:50:05Z | |
| dc.date.available | 2026-07-07T02:50:05Z | |
| dc.description | A mesoscopic model is proposed to explain the anomalous dynamics in a supercooled liquid as its glass transition temperature is approached from above. The model is based on the assumption of $β$ organized $α$ process, with the requirement of coherent excitation of a minimum critical number $N_{c}$ of $β$ processes in the surroundings of a total $N_β$. Numerical evaluation of the model shows that the growth in this critical number in the background of a modest $N_β$ can lead to a severe entropic bottleneck and slow down the dynamics to an extent observed near real glass transition. The fragility of the glass-forming liquid is shown to be correlated with the growth of the ratio $γ(= N_{c}/N_β)$. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0303153 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0303153 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20994 | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Relationship between Entropic Bottleneck in Free Energy Landscape, Nonexponential Relaxation and Fragility of Glass-Forming Liquids | |
| dc.type | text |