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  Current fluctuations across a nano-pore

Zorkot, M., Golestanian, R., & Golestanian, R. (2018). Current fluctuations across a nano-pore. Journal of Physics Condensed Matter, 30: 134001. doi:10.1088/1361-648X/aab016.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-AF37-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-AF38-C
Genre: Journal Article

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Zorkot, M., Author
Golestanian, R.1, Author              
Golestanian, R.2, Author              
Affiliations:
1Rudolf Peierls Centre for Theoretical Physics, Oxford University, Oxford, OX1 3NP, United Kingdom, ou_persistent22              
2Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2570692              

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 Abstract: The frequency-dependent spectrum of current fluctuations through nano-scale channels is studied using analytical and computational techniques. Using a stochastic Nernst-Planck description and neglecting the interactions between the ions inside the channel, an expression is derived for the current fluctuations, assuming that the geometry of the channel can be incorporated through the lower limits for various wave-vector modes. Since the resulting expression turns out to be quite complex, a number of further approximations are discussed such that relatively simple expressions can be used for practical purposes. The analytical results are validated using Langevin dynamics simulations. © 2018 IOP Publishing Ltd.

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Language(s): eng - English
 Dates: 2018-03-05
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1088/1361-648X/aab016
BibTex Citekey: Zorkot2018
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Title: Journal of Physics Condensed Matter
Source Genre: Journal
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Pages: 9 Volume / Issue: 30 Sequence Number: 134001 Start / End Page: - Identifier: -