Coulomb interaction rules timescales in potassium ion channel tunneling
Biological Physics
2018-07-04 v2 Quantum Physics
Abstract
Assuming that the selectivity filter of KcsA potassium ion channel may exhibit quantum coherence, we extend a previous model by Vaziri and Plenio (2010) to take into account Coulomb repulsion between potassium ions. We show that typical ion transit timescales are determined by this interaction, which imposes optimal input/output parameter ranges. Also, as observed in other examples of quantum tunneling in biological systems, addition of moderate noise helps coherent ion transport.
Keywords
Cite
@article{arxiv.1803.04480,
title = {Coulomb interaction rules timescales in potassium ion channel tunneling},
author = {N. De March and S. D. Prado and L. G. Brunnet},
journal= {arXiv preprint arXiv:1803.04480},
year = {2018}
}
Comments
12 pages, 10 figures