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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Maths HEP Lunchtime Seminars: "Self-avoiding walks, branched polymers, confinement, supersymmetry and dimensional reduction."

Presented by John Cardy (Oxford),

10 May 2002 00:00 in CM221

"Self-avoiding walks are fractal objects in the plane. When coupled to a confining gauge potential they collapse into other objects called branched polymers. Following earlier suggestions of Parisi and Sourlas, it has recently been shown that these possess a supersymmetry which is responsible for dimensional reduction and allows many exact results to be derived. Working backwards, we deduce some properties of self-avoiding walks in two dimensions, for example the fractal dimension 4/3."

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