Relativistic field theories in three dimensions
- 1 August 1982
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 23 (8) , 1511-1517
- https://doi.org/10.1063/1.525524
Abstract
We provide a complete classification of the unitary irreducible representations of the (2+1)‐dimensional Poincaré group. We show, in particular, that only two types of ’’spin’’ are available for massless field theories. We also construct generalized Foldy–Wouthuysen transformations which connect the physical UIR’s with covariant field theories in three dimensions.Keywords
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