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Gauge fields, strings, solitons, anomalies, and the speed of life
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2014 (English)In: Theoretical and mathematical physics, ISSN 0040-5779, E-ISSN 1573-9333, Vol. 181, no 1, 1235-1262 p.Article in journal (Refereed) Published
Abstract [en]

Joel Cohen proposed that "mathematics is biology's next microscope, only better; biology is mathematics' next physics, only better." Here, we aim for something even better. We try to combine mathematical physics and biology into a picoscope of life. For this, we merge techniques that were introduced and developed in modern mathematical physics, largely by Ludvig Faddeev, to describe objects such as solitons and Higgs and to explain phenomena such as anomalies in gauge fields. We propose a synthesis that can help to resolve the protein folding problem, one of the most important conundrums in all of science. We apply the concept of gauge invariance to scrutinize the extrinsic geometry of strings in three-dimensional space. We evoke general principles of symmetry in combination with Wilsonian universality and derive an essentially unique Landau-Ginzburg energy that describes the dynamics of a generic stringlike configuration in the far infrared. We observe that the energy supports topological solitons that relate to an anomaly similarly to how a string is framed around its inflection points. We explain how the solitons operate as modular building blocks from which folded proteins are composed. We describe crystallographic protein structures by multisolitons with experimental precision and investigate the nonequilibrium dynamics of proteins under temperature variations. We simulate the folding process of a protein at in vivo speed and with close to picoscale accuracy using a standard laptop computer. With picobiology as next pursuit of mathematical physics, things can only get better.

Place, publisher, year, edition, pages
2014. Vol. 181, no 1, 1235-1262 p.
Keyword [en]
physics of proteins, soliton, nonlinear Schrodinger equation, extrinsic string geometry
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-240023DOI: 10.1007/s11232-014-0210-xISI: 000344923700007OAI: oai:DiVA.org:uu-240023DiVA: diva2:775861
Available from: 2015-01-05 Created: 2015-01-05 Last updated: 2015-01-05Bibliographically approved

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Niemi, Antti J.
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