On the instability of the vacuum in multidimensional scalar theories

Autor:	Yu. A. Kubyshin, Klaus Kirsten, Emilio Elizalde
Rok vydání:	1996
Předmět:	Physics Extra dimensions Theoretical physics Physics and Astronomy (miscellaneous) Dimensional reduction Quantum mechanics Scalar (mathematics) Bibliography Instability Quartic interaction
Zdroj:	Zeitschrift für Physik C: Particles and Fields. 70:159-172
ISSN:	1431-5858 0170-9739
DOI:	10.1007/s002880050093
Popis:	The one-loop effective potential in a scalar theory with quartic interaction on the spaceM 4×T n forn=2 is calculated and is shown to be unbounded from below. This is an indication of a possible instability of the vacuum of theλψ 4 model onM 4, when it is regarded as a low-energy sector of the theory obtained by dimensional reduction of the original six-dimensional one. It is argued that, in some range of the values of the parameters of the theory, higher-loop corrections do not change this result qualitatively. The issue of stability for other values of the numbern of extra dimensions is also discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eaa343ec80a5c7d1c108b98519a4b249 https://doi.org/10.1007/s002880050093 Zobrazit plný text záznamu Full text from SpringerLink