کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8199405 1528952 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Path integral in area tensor Regge calculus and complex connections
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Path integral in area tensor Regge calculus and complex connections
چکیده انگلیسی
Euclidean quantum measure in Regge calculus with independent area tensors is considered using example of the Regge manifold of a simple structure. We go over to integrations along certain contours in the hyperplane of complex connection variables. Discrete connection and curvature on classical solutions of the equations of motion are not, strictly speaking, genuine connection and curvature, but more general quantities and, therefore, these do not appear as arguments of a function to be averaged, but are the integration (dummy) variables. We argue that upon integrating out the latter the resulting measure can be well-defined on physical hypersurface (for the area tensors corresponding to certain edge vectors, i.e. to certain metric) as positive and having exponential cutoff at large areas on condition that we confine ourselves to configurations which do not pass through degenerate metrics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 637, Issues 4–5, 15 June 2006, Pages 350-355
نویسندگان
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