Generating a mass gap using Feynman diagrams in an asymptotically free theory
Publication
, Conference
Ayyar, V; Chandrasekharan, S
Published in: EPJ Web of Conferences
March 26, 2018
Using the example of a two dimensional four-fermion lattice field theory, we show that Feynman diagrams can generate a mass gap in a theory with massless fermions that interact via a marginally relevant coupling. We show this by introducing an infrared cutoff that makes the perturbation series for the partition function convergent. We use a Monte Carlo approach to sample sufficiently high orders of diagrams and thus expose the presence of the mass gap.
Duke Scholars
Published In
EPJ Web of Conferences
DOI
EISSN
2100-014X
ISSN
2101-6275
Publication Date
March 26, 2018
Volume
175
Citation
APA
Chicago
ICMJE
MLA
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Ayyar, V., & Chandrasekharan, S. (2018). Generating a mass gap using Feynman diagrams in an asymptotically free theory. In EPJ Web of Conferences (Vol. 175). https://doi.org/10.1051/epjconf/201817511010
Ayyar, V., and S. Chandrasekharan. “Generating a mass gap using Feynman diagrams in an asymptotically free theory.” In EPJ Web of Conferences, Vol. 175, 2018. https://doi.org/10.1051/epjconf/201817511010.
Ayyar V, Chandrasekharan S. Generating a mass gap using Feynman diagrams in an asymptotically free theory. In: EPJ Web of Conferences. 2018.
Ayyar, V., and S. Chandrasekharan. “Generating a mass gap using Feynman diagrams in an asymptotically free theory.” EPJ Web of Conferences, vol. 175, 2018. Scopus, doi:10.1051/epjconf/201817511010.
Ayyar V, Chandrasekharan S. Generating a mass gap using Feynman diagrams in an asymptotically free theory. EPJ Web of Conferences. 2018.
Published In
EPJ Web of Conferences
DOI
EISSN
2100-014X
ISSN
2101-6275
Publication Date
March 26, 2018
Volume
175