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Knots in dynamical systems with applications to electromagnetism and quantum systems

Project description

Tracking the time evolution of knots in electromagnetism and quantum mechanics

Knot theory, the study of closed curves in three dimensions, and their possible deformations without one part cutting through another, is increasingly important in biology, chemistry and physics. Funded by the Marie Skłodowska-Curie Actions programme, the KNOTDYNAPP project aims to study the time evolution of knots in different dynamical systems. Special focus will be placed on proving the existence of differential equation solutions that contain knots that persist for all time in electromagnetism and quantum mechanics. To address certain mathematical problems in these fields, researchers will borrow techniques from differential geometry and low-dimensional topology.

Objective

Mathematical knot theory plays an increasingly important role in biology, chemistry and physics. In this project we aim to study the time evolution of knots in different dynamical systems. We are particularly interested in differential equations that are motivated by electromagnetism and quantum mechanics. For such differential equations we aim to prove the existence of solutions that contain knots, which evolve as desired, and explicitly construct such solutions.

In the case of electromagnetic fields this refers to vector fields, representing the electric and magnetic part of such a field, that satisfy Maxwell's equations and have closed flow lines in the shape of a given knot for all time. In particular, we want the knot type of this closed flow line to be stable, i.e. it is not allowed to change over time.

In the case of quantum wavefunctions we are concerned with complex-valued functions that satisfy linear or non-linear Schrödinger equations and whose nodal set is knotted at a moment in time. We plan to develop a construction of such functions for which the time evolution of such a quantum vortex knot is determined by a prescribed surface, embedded in 4-dimensional space representing space and time.

We also study relations between topological properties of knots and the corresponding functions. For example, we investigate the connection between the fibration property of a knot K and the non-vanishing of a magnetic field induced by an electric current through a knotted wire in a shape that is isotopic to K.

These mathematical problems are approached with techniques from differential geometry, low-dimensional topology and the theory of differential equations. The proposal also discusses the two way transfer of knowledge between the host institute and the candidate.

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MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

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(opens in new window) H2020-MSCA-IF-2020

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Coordinator

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 160 932,48
Address
CALLE SERRANO 117
28006 MADRID
Spain

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Comunidad de Madrid Comunidad de Madrid Madrid
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Research Organisations
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 160 932,48
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