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KTH/Nordita/SU seminar in Theoretical Physics

Strings in Holographic Backgrounds

by Volker Schomerus (Hamburg)

Europe/Stockholm
FA32 ()

FA32

Description
According to the so-called AdS/CFT correspondence, many interesting 4D gauge theories possess an equivalent description through closed strings. In order for this duality to work, however, the strings must propagate in novel 5D ``holographic'' backgrounds. After reviewing key ideas and features of gauge-string dualities, I shall extract a list of new challenges that are posed to perturbative string theory. Their formulation highlights interesting links with a variety of current problems in mathematical physics, disordered electron systems and surface critical phenomena. The talks concludes with some promising recent developments that are being persued to construct string theory in holographic backgrounds.