Universal bounds on optimization of free energy harvesting
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866929272552161280 |
|---|---|
| author | Piñero, Jordi Solé, Ricard Kolchinsky, Artemy |
| author_facet | Piñero, Jordi Solé, Ricard Kolchinsky, Artemy |
| contents | Harvesting free energy from the environment is essential for the operation of many biological and artificial systems. We investigate the maximum rate of harvesting achievable by optimizing a set of reactions in a Markovian system, possibly given topological, kinetic, and thermodynamic constraints. We show that the maximum harvesting rate can be expressed as a variational principle, which we solve in closed-form for three physically meaningful regimes. Our approach is relevant for optimal design and for quantifying efficiency of existing reactions. Our results are illustrated on bacteriorhodopsin, a light-driven proton pump from Archae, which is found to be close to optimal under realistic conditions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_04975 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Universal bounds on optimization of free energy harvesting Piñero, Jordi Solé, Ricard Kolchinsky, Artemy Statistical Mechanics Adaptation and Self-Organizing Systems Biological Physics Harvesting free energy from the environment is essential for the operation of many biological and artificial systems. We investigate the maximum rate of harvesting achievable by optimizing a set of reactions in a Markovian system, possibly given topological, kinetic, and thermodynamic constraints. We show that the maximum harvesting rate can be expressed as a variational principle, which we solve in closed-form for three physically meaningful regimes. Our approach is relevant for optimal design and for quantifying efficiency of existing reactions. Our results are illustrated on bacteriorhodopsin, a light-driven proton pump from Archae, which is found to be close to optimal under realistic conditions. |
| title | Universal bounds on optimization of free energy harvesting |
| topic | Statistical Mechanics Adaptation and Self-Organizing Systems Biological Physics |
| url | https://arxiv.org/abs/2303.04975 |