Statistics of knots and entangled random walks

Details Statistics of knots and entangled random walks Statistics of knots and entangled random walks

1998-12-11

arxiv.org/abs/cond-mat/9812205v1

Physics

Condensed Matter

Statistical Mechanics

Extended version of lectures presented at Les Houches 1998 summer school "Topological Aspects of Low Dimensional Systems", Jul

Scientific paper

The lectures review the state of affairs in modern branch of mathematical physics called probabilistic topology. In particular we consider the following problems: (i) We estimate the probability of a trivial knot formation on the lattice using the Kauffman algebraic invariants and show the connection of this problem with the thermodynamic properties of 2D disordered Potts model; (ii) We investigate the limit behavior of random walks in multi-connected spaces and on non-commutative groups related to the knot theory. We discuss the application of the above mentioned problems in statistical physics of polymer chains. On the basis of non-commutative probability theory we derive some new results in statistical physics of entangled polymer chains which unite rigorous mathematical facts with more intuitive physical arguments.

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