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OverviewThis thesis introduces readers to the type II superstring theories in the AdS5×S5 and AdS4×CP3 backgrounds. Each chapter exemplifies a different computational approach to measuring observables (conformal dimensions of single-trace operators and expectation values of Wilson loop operators) relevant for two supersymmetric theories: the N=4 super Yang-Mills theory and the N=6 Chern-Simons-matter (ABJM) theory. Perturbative techniques have traditionally been used to make quantitative predictions in quantum field theories, but they are only reliable as long as the interaction strengths are weak. The anti-de Sitter/conformal field theory (AdS/CFT) correspondence realizes physicists’ dream of studying strongly coupled quantum field theories with “enhanced” symmetries, using the methods provided by string theory. The first part of the thesis sets up the semiclassical quantization of worldsheet sigma-model actions around string solutions of least area in AdS space. This machinery is used to capture quantum corrections at large coupling to next-to-leading and next-to-next-to-leading order by solving the determinants of partial differential operators and by computing Feynman diagrams, respectively. In turn, the second part presents an innovative approach based on Monte Carlo simulations to finite coupling for a lattice-discretized model of the AdS5×S5 superstring action. The thesis focuses on fundamental aspects, as well as on applications previously published by the author, and offers a valuable reference work for anyone interested in the most recent developments in this field. Full Product DetailsAuthor: Edoardo VescoviPublisher: Springer International Publishing AG Imprint: Springer International Publishing AG Edition: 1st ed. 2017 Weight: 5.089kg ISBN: 9783319634197ISBN 10: 3319634194 Pages: 239 Publication Date: 05 September 2017 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Table of ContentsIntroduction.- Superstring Actions in AdS5 × S5 and AdS4 × CP3 Spaces.- Geometric Properties of Semiclassically Quantized Strings.- “Exact” Semiclassical Quantization of Folded Spinning Strings.- Towards Precision Holography for Latitude Wilson Loops.- Light-like Cusp Anomaly and the Interpolating Function in ABJM.- AdS5 × S5 Superstring on the Lattice.- Conclusion and outlook.ReviewsAuthor Information"Edoardo Vescovi received the B.Sc. and the M.Sc. in Physics at Parma University (Italy) in the groups of Prof. Raffaella Burioni and Prof. Luca Griguolo respectively. He completed his Ph.D. in Theoretical Physics at Humboldt University Berlin (Germany) in 2016 in the Independent Emmy Noether Research Group ""Gauge Fields from Strings"" led by Prof. Dr. Valentina Forini." Tab Content 6Author Website:Countries AvailableAll regions |
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