Conceptual Aspects of Gauge/Gravity Duality

Understand

We give an introductory review of gauge/gravity duality, and associated ideas of holography, emphasising the conceptual aspects.

• The opening Sections gather the ingredients, viz.
• anti-de Sitter spacetime, conformal field theory and string theory, that we need for presenting, in Section 5, the central and original example: Maldacena's AdS/CFT correspondence.
• Sections 6 and 7 develop the ideas of this example, also in applications to condensed matter systems, QCD, and hydrodynamics.