Noncompact sigma-models: Large N expansion and thermodynamic limit
نویسندگان
چکیده
منابع مشابه
2 0 Ju n 20 07 MPP - 2007 - 75 Noncompact sigma - models : Large N expansion and thermodynamic limit
Noncompact SO(1, N) sigma-models are studied in terms of their large N expansion in a lattice formulation in dimensions d ≥ 2. Explicit results for the spin and current two-point functions as well as for the Binder cumulant are presented to next to leading order on a finite lattice. The dynamically generated gap is negative and serves as a coupling-dependent infrared regulator which vanishes in...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2008
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2007.07.020