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Leading all-loop quantum contribution to the effective potential in general scalar field theoryстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Kazakov D.I., Iakhibbaev R.M., Tolkachev D.M.
- Журнал: Journal of High Energy Physics
- Том: 2023
- Номер: 4
- Год издания: 2023
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- DOI: 10.1007/jhep04(2023)128
- Аннотация: The RG equation for the effective potential in the leading log (LL) approximation is constructed which is valid for an arbitrary scalar field theory in 4 dimensions. The solution to this equation sums up the leading log ϕ contributions to all orders of perturbation theory. In general, this is the second order nonlinear partial differential equation, but in some cases it can be reduced to the ordinary one. For particular examples, this equation is solved numerically and the LL effective potential is constructed. The solution has a characteristic discontinuity replacing the Landau pole typical for the ϕ^4 theory. For a power-like potential no new minima appear due to the Coleman-Weinberg mechanism.
- Добавил в систему: Яхиббаев Равиль Маратович