Fractional Statistics and Chern-Simons Field Theory in 2+1 Dimensions

Details Fractional Statistics and Chern-Simons Field Theory in 2+1 Dimensions Fractional Statistics and Chern-Simons Field Theory in 2+1 Dimensions

1999-08-04

arxiv.org/abs/hep-th/9908027v1

Quantum Field Theory: A 20th Century Profile, 702-729, Ed. A.N. Mitra (Hindustan Publishing Com., New Delhi, 2000)

Physics

High Energy Physics

High Energy Physics - Theory

47 pages, To be Published in INSA Book 2000

Scientific paper

The question of anyons and fractional statistics in field theories in 2+1 dimensions with Chern-Simons (CS) term is discussed in some detail. Arguments are spelled out as to why fractional statistics is only possible in two space dimensions. This phenomenon is most naturally discussed within the framework of field theories with CS term, hence as a prelude to this discussion I first discuss the various properties of the CS term. In particular its role as a gauge field mass term is emphasized. In the presence of the CS term, anyons can appear in two different ways i.e. either as soliton of the corresponding field theory or as a fundamental quanta carrying fractional statistics and both approaches are elaborated in some detail.

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