These are introductory lectures on the correspondence between SU(N) gauge theories and Superstring Theory in anti-de Sitter geometries (AdS). The subject combines a number of different topics, including supersymmetric field theory, classical and quantum physics of black holes, string theory, string dualities, conformal field theories (CFT), and quantum field theory in anti-de Sitter spaces. We ...

We consider the correspondence between solutions of non-gravitational field theories formulated in Euclidean space-time andMinkowski spacetime. Infinitely many “Euclidean” spaces can be obtained from M via a group of transformations in which the Wick rotation is a special case. We then discuss how the solutions of gauge field theories formulated in these “Euclidean” spaces have a one-to-one cor...

introduction. determining educational needs is the first step in educational planning. need assessment influences all the decisions regarding educational content, objectives & effective use of resources. to determine the correspondence of educational needs & content in the psychiatry & pediatrics prevalent diseases workshops. methods. to do this cross- sectional study, 50 physicians participati...

We study the Witten diagram with general spinor field exchange on the (d + 1)dimensional Euclidean Anti-de Sitter Space, which is necessary to calculate four-point correlation functions with spinor fields when we make use of the AdS/CFT correspondence, especially, in supersymmetric cases. We show that the amplitude can be expressed by that with scalar field exchange, which have been previously ...