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Mesons in gauge/gravity duals: a review

Mesons in gauge/gravity duals: a review
Mesons in gauge/gravity duals: a review
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 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 Some previously unpublished results are also included.
1434-6001
81-133
Erdmenger, J.
22f87c1c-747a-4bd8-94d4-924d0031a64d
Evans, N.
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Kirsch, I.
dd7b4adb-06d9-48f6-be5e-49419513a901
Threlfall, E.J.
4b65c0ba-4c52-4468-b26d-b82848f8daeb
Erdmenger, J.
22f87c1c-747a-4bd8-94d4-924d0031a64d
Evans, N.
33dfbb52-64dd-4c1f-9cd1-074faf2be4b3
Kirsch, I.
dd7b4adb-06d9-48f6-be5e-49419513a901
Threlfall, E.J.
4b65c0ba-4c52-4468-b26d-b82848f8daeb

Erdmenger, J., Evans, N., Kirsch, I. and Threlfall, E.J. (2008) Mesons in gauge/gravity duals: a review. The European Physical Journal A, 35, 81-133. (doi:10.1140/epja/i2007-10540-1).

Record type: Article

Abstract

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 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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Submitted date: 14 December 2007
Published date: 2008

Identifiers

Local EPrints ID: 57191
URI: https://eprints.soton.ac.uk/id/eprint/57191
ISSN: 1434-6001
PURE UUID: 3b762eb6-5dfd-4481-921a-07a469f1c766

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Date deposited: 15 Aug 2008
Last modified: 13 Mar 2019 20:34

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Contributors

Author: J. Erdmenger
Author: N. Evans
Author: I. Kirsch
Author: E.J. Threlfall

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