Singularities in Gravitational Systems, Daniel Benest; Claude Froeschle
Автор: Gasperini Название: Theory of Gravitational Interactions ISBN: 3319496816 ISBN-13(EAN): 9783319496818 Издательство: Springer Рейтинг: Цена: 7965.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This is the second edition of a well-received book that is a modern, self-contained introduction to the theory of gravitational interactions. The new edition includes more details on gravitational waves of cosmological origin, the so-called brane world scenario, and gravitational time-delay effects.
The first part of the book follows the traditional presentation ofgeneral relativity as a geometric theory of the macroscopic gravitationalfield, while the second, more advanced part discusses the deep analogies (anddifferences) between a geometric theory of gravity and the gauge theories ofthe other fundamental interactions. This fills a gap within the traditionalapproach to general relativity which usually leaves students puzzled about therole of gravity. The required notions of differential geometry are reduced tothe minimum, allowing room for aspects of gravitational physics of currentphenomenological and theoretical interest, such as the properties ofgravitational waves, the gravitational interactions of spinors, and thesupersymmetric and higher-dimensional generalization of the Einstein equations.
This textbook is primarily intended for students pursuing a theoretical or astroparticle curriculum but is also relevant for PhD students and young researchers.
Автор: Gorbenko Название: From QCD Flux Tubes to Gravitational S-matrix and Back ISBN: 3319446029 ISBN-13(EAN): 9783319446028 Издательство: Springer Рейтинг: Цена: 15372.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This thesis studies various aspects of non-critical strings both as an example of a non-trivial and solvable model of quantum gravity and as a consistent approximation to the confining flux tube in quantum chromodynamics (QCD). It proposes and develops a new technique for calculating the finite volume spectrum of confining flux tubes. This technique is based on approximate integrability and it played a game-changing role in the study of confining strings. Previously, a theoretical interpretation of available high quality lattice data was impossible, because the conventional perturbative expansion for calculating the string spectra was badly asymptotically diverging in the regime accessible on the lattice. With the new approach, energy levels can be calculated for much shorter flux tubes than was previously possible, allowing for a quantitative comparison with existing lattice data. The improved theoretical control makes it manifest that existing lattice data provides strong evidence for a new pseudoscalar particle localized on the QCD fluxtube - the worldsheet axion. The new technique paves a novel and promising path towards understanding the dynamics of quark confinement.
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