کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1843474 1527772 2009 46 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Disordered O(n)O(n) loop model and coupled conformal field theories
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Disordered O(n)O(n) loop model and coupled conformal field theories
چکیده انگلیسی

A family of models for fluctuating loops in a two-dimensional random background is analyzed. The models are formulated as O(n)O(n) spin models with quenched inhomogeneous interactions. Using the replica method, the models are mapped to the M→0M→0 limits of M  -layered O(n)O(n) models coupled each other via ϕ1,3ϕ1,3 primary fields. The renormalization group flow is calculated in the vicinity of the decoupled critical point, by an epsilon expansion around the Ising point (n=1n=1), varying n   as a continuous parameter. The one-loop beta function suggests the existence of a strongly coupled phase (0

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 820, Issue 3, 21 October 2009, Pages 707–752
نویسندگان
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