Instant-Form and Light-Front Quantization of Field Theories
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In this work we consider the instant-form and light-front quantization of some field theories. As an example, we consider a class of gauged non-linear sigma models with different regularizations. In particular, we present the path integral quantization of the gauged non-linear sigma model in the Faddeevian regularization. We also make a comparision of the possible differences in the instant-form and light-front quantization at appropriate places.
This work was supported in part by the US Department of Energy under Grant No. DE-FG02-87ER40371 and by the US National Science Foundation under Grant No. PHY-0904782. We thank Anuradha Mishra for providing an excellent ambiance at the LC-2017 Mumbai where this work was presented.