Diffusion in rugged energy landscapes is central to chemical physics, with relevance to glasses, disordered solids, and biomolecular motion. Most theories assume quenched disorder, but in many condensed-phase and biological systems, local energies fluctuate because of solvent reorganization, structural relaxation, or c...
Biman Bagchi· Journal of Chemical Physics· 0 citations
Helices are among the most common ordered structures in biological and synthetic polymers, but their formation involves more than local conformational preference. A finite helix must nucleate, grow, resist breaking, and maintain a selected handedness against thermal fluctuations. We develop a three-state Ising-like tra...
Here we develop an elasticity-based theory of crystallization in glasses that incorporates structural heterogeneity, fictive temperature, and polymorph-mediated pathways. In a glass, structural degrees of freedom are effectively frozen, so that the fictive temperature Tf remains higher than the ambient temperature T, r...
Helical segments in polymer chains are often transient, finite, and dynamically evolving, yet their origin and stability remain incompletely understood. Here, we develop a minimal coarse-grained statistical-mechanical theory that explains how such "living helices" emerge in fluctuating polymer systems. Using a three-st...
Biman Bagchi· Journal of Chemical Physics· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
