Nonlinear Renormalization Group Flow and Optimization
نویسندگان
چکیده
منابع مشابه
Optimization of Renormalization Group Transformations
This thesis examines the optimization of renormaiization group transformations. To do this I have examined simple spin models where some understanding of the problems which arise and particularly the systematic errors can be acquired. In the first chapter I have given a brief description of critical phenomena which provides the motivation for the study of the renormalization group in this rest ...
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First-order ‘Bogomol’nyi’ equations are found for dilaton domain walls of D-dimensional gravity with the general dilaton potential admitting a stable anti-de Sitter vacuum. Implications for renormalization group flow in the holographically dual field theory are discussed. e-mail address:[email protected] e-mail address: [email protected]
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We study cosmological solutions of Einstein gravity with a positive cosmological constant and perfect fluid matter in diverse dimensions. These include big-bang models that re-collaspse, big-bang models that approach de Sitter acceleration at late times, and bounce models that are both past and future asymptotically de Sitter. The re-collapsing and the bounce geometries are all tall in the sens...
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ژورنال
عنوان ژورنال: Journal of Nonlinear Mathematical Physics
سال: 2001
ISSN: 1776-0852
DOI: 10.2991/jnmp.2001.8.s.32