5 research outputs found
Krein Regularization of \lambda\phi^4
We calculate the four-point function in \lambda\phi^4 theory by using Krein
regularization and compare our result, which is finite, with the usual result
in \lambda\phi^4 theory. The effective coupling constant (\lambda_\mu) is also
calculated in this method
Effective Action of λφ3 in Krein Space Quantization
The appearance of divergence creates computational issues in the process of calculating the one-loop effective action of λφ3 in quantum field theory. In this paper, it is demonstrated that using Krein space quantization with Ford’s method of fluctuated metrics, divergence can be removed and that without using any traditional regularization method, it is possible to arrive at a finite solution for the effective action.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author