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Mesons in Gauge/Gravity Duals - A Review

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arxiv 0711.4467 v2 pith:XPINYIGS submitted 2007-11-28 hep-th hep-lathep-ph

Johanna Erdmenger , Nick Evans , Ingo Kirsch , Ed Threlfall This is my paper · ORCID
classification hep-thhep-lathep-ph
keywords gaugegravitymesonsapproachdualflavourlargeresults
verification ladder T0 review T1 audit T2 compute T3 formal

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We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our main focus is on the `top-down approach' of considering models constructed within string theory. We explain the string-theoretical constructions in detail, aiming at non-specialists. These give rise to a new way of describing strongly coupled confining large N gauge gauge theories similar to large N QCD. In particular, we consider gravity dual descriptions of spontaneous chiral symmetry breaking, and compare with lattice results. A further topic covered is the behaviour of flavour bound states in finite temperature field theories dual to a gravity background involving a black hole. We also describe the `bottom up' phenomenological approach to mesons within AdS/QCD. -- Some previously unpublished results are also included.

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Cited by 11 Pith papers

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