Abstract
We consider a theory of a scalar one-component field f coupled to a scalar N-component field χ. Using large N techniques we calculate the effective potential in the leading order in 1 N . We show that this is equivalent to a resummation of an infinite subclass of graphs in perturbation theory, which involve fluctuations of the χ field only. We study the temperature dependence of the expectation value of the f field and the resulting first and second order phase transitions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
