Critical Behavior of a General O(n)-symmetric Model of two n-Vector Fields in D=4-2 epsilon

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dc.creatorPis'mak, Yuri M.
dc.creatorWeber, Alexej
dc.creatorWegner, Franz J.
dc.date2008-09-09
dc.date2008-10-01
dc.date.accessioned2026-07-07T12:38:46Z
dc.date.available2026-07-07T12:38:46Z
dc.descriptionThe critical behaviour of the O(n)-symmetric model with two n-vector fields is studied within the field-theoretical renormalization group approach in a D=4-2 epsilon expansion. Depending on the coupling constants the beta-functions, fixed points and critical exponents are calculated up to the one- and two-loop order, resp. (eta in two- and three-loop order). Continuous lines of fixed points and O(n)*O(2) invariant discrete solutions were found. Apart from already known fixed points two new ones were found. One agrees in one-loop order with a known fixed point, but differs from it in two-loop order.
dc.description23 pages
dc.identifierhttps://arxiv.org/abs/0809.1568
dc.identifierhttp://arxiv.org/abs/0809.1568
dc.identifierJ.Phys.A42:095003,2009
dc.identifierdoi:10.1088/1751-8113/42/9/095003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218874
dc.subjectStatistical Mechanics
dc.titleCritical Behavior of a General O(n)-symmetric Model of two n-Vector Fields in D=4-2 epsilon
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