Control of quantum fluctuations for a Yukawa interaction in the Kaluza-Klein picture

Alexandre, J; Farakos, K

dc.contributor.author	Alexandre, J	en
dc.contributor.author	Farakos, K	en
dc.date.accessioned	2014-03-01T01:23:44Z
dc.date.available	2014-03-01T01:23:44Z
dc.date.issued	2006	en
dc.identifier.issn	1367-2630	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17124
dc.subject	Quantum Fluctuation	en
dc.subject	Scalar Field	en
dc.subject	Kaluza Klein	en
dc.subject	non perturbative	en
dc.subject	schwinger dyson	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	High energy physics	en
dc.subject.other	Numerical methods	en
dc.subject.other	Quantum theory	en
dc.subject.other	Consistency	en
dc.subject.other	Dynamical fermion mass	en
dc.subject.other	Functional method	en
dc.subject.other	Schwinger-Dyson approach	en
dc.subject.other	Fermions	en
dc.title	Control of quantum fluctuations for a Yukawa interaction in the Kaluza-Klein picture	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1367-2630/8/9/198	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1367-2630/8/9/198	en
heal.identifier.secondary	198	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	We study a system of fermions interacting with a scalar field, in 4 + 1 dimensions where the 5th dimension is compactified, using an exact functional method, where quantum fluctuations are controlled by the amplitude of the bare fermion mass. The integration of our equations leads to the properties of the dressed Yukawa coupling, that we study at one-loop so as to show the consistency of the approach. Beyond one loop, the non-perturbative aspect of the method gives us the possibility to derive the dynamical fermion mass. The result obtained is cutoff independent and this derivation proposes an alternative to the Schwinger-Dyson approach. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	New Journal of Physics	en
dc.identifier.doi	10.1088/1367-2630/8/9/198	en
dc.identifier.isi	ISI:000240779500004	en
dc.identifier.volume	8	en