Einstein relations for energy coupled particle systems
Abstract
Einstein relations define ratios for diffusion and drift currents for an ensemble of particles moving via probabilistic events such as hops. An Einstein relation was derived for charged particles constrained to move as an integral part of a system having an energy consideration routed in its material matrix. For example, the cases where a deformation of a matrix or lattice structure stores or releases free energy upon electron concentration change. Using an analysis based on energy gradients, diffusion, and the steady state, a thermodynamic framework for energy-coupled motion was developed and applied to protein folding. Findings include an infinite mobility condition arising from finite free energy gradients.
- Publication:
-
Applied Physics Letters
- Pub Date:
- March 2006
- DOI:
- 10.1063/1.2181195
- Bibcode:
- 2006ApPhL..88k2110K
- Keywords:
-
- 87.14.Ee;
- 87.15.He;
- 87.15.Vv;
- 87.15.Aa;
- 36.20.-r;
- Proteins;
- Dynamics and conformational changes;
- Diffusion;
- Theory and modeling;
- computer simulation;
- Macromolecules and polymer molecules