On Nonlinear σ-Models Arising in (Super-)Gravity
نویسندگان
چکیده
منابع مشابه
Information metric on instanton moduli spaces in nonlinear σ models
We study the information metric on instanton moduli spaces in two-dimensional nonlinear σ models. In the CP 1 model, the information metric on the moduli space of one instanton with the topological charge Q = k (k ≥ 1) is a three-dimensional hyperbolic metric, which corresponds to Euclidean anti–de Sitter space-time metric in three dimensions, and the overall scale factor of the information met...
متن کاملTopological Field Theory and Nonlinear Σ - Models on Symmetric Spaces
We show that the classical non-abelian pure Chern-Simons action is related to nonrelativistic models in (2+1)-dimensions, via reductions of the gauge connection in Hermitian symmetric spaces. In such models the matter fields are coupled to gauge Chern-Simons fields, which are associated with the isotropy subgroup of the considered symmetric space. Moreover, they can be related to certain (integ...
متن کاملSymmetry reduced Einstein gravity and generalized σ and chiral models
Certain features associated with the symmetry reduction of the vacuum Einstein equations by two commuting, space-like Killing vector fields are studied. In particular, the discussion encompasses the equations for the Gowdy T 3 cosmology and cylindrical gravitational waves. We first point out a relation between the SL(2, R) (or SO(3)) σ and principal chiral models, and then show that the reduced...
متن کاملon some bayesian statistical models in actuarial science with emphasis on claim count
چکیده ندارد.
15 صفحه اولOn nonlinear parametric quantization of gravity and cosmological models
A generalization of the recently formulated nonlinear quantization of a parameterized theory is presented in the context of quantum gravity. The parametric quantization of a Friedmann universe with a massless scalar field is then considered in terms of analytic solutions of the resulting evolution equations. PACS numbers: 04.60.Ds, 04.60.Kz, 04.20.Fy, 11.10.Lm In a recent paper [1] the quantiza...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Communications in Mathematical Physics
سال: 2000
ISSN: 0010-3616,1432-0916
DOI: 10.1007/s002200050038