A geometric generalization of field theory to manifolds of arbitrary dimension

Details A geometric generalization of field theory to manifolds of arbitrary dimension A geometric generalization of field theory to manifolds of arbitrary dimension

1998-03-23

arxiv.org/abs/cond-mat/9803279v1

Eur.Phys.J.B7:187-190,1998

Physics

Condensed Matter

Scientific paper

10.1007/s100510050604

We introduce a generalization of the O(N) field theory to N-colored membranes of arbitrary inner dimension D. The O(N) model is obtained for D->1, while N->0 leads to self-avoiding tethered membranes (as the O(N) model reduces to self-avoiding polymers). The model is studied perturbatively by a 1-loop renormalization group analysis, and exactly as N->infinity. Freedom to choose the expansion point D, leads to precise estimates of critical exponents of the O(N) model. Insights gained from this generalization include a conjecture on the nature of droplets dominating the 3d-Ising model at criticality; and the fixed point governing the random bond Ising model.

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