Intersecting D4-branes model of holographic QCD and tachyon condensation

Open Access


We consider the intersecting D4-brane and anti-D4-brane model of holographic QCD, motivated by the model that has recently been suggested by Van Raamsdonk and Whyte. We analyze such D4-branes by the use of the action with a bi-fundamental “tachyon” field, so that we find the classical solutions describing the intersecting D4-branes and the U-shaped D4-branes. We show that the “tachyon” field in the bulk theory provides a current quark mass and a quark condensate to the dual gauge theory and that the lowest modes of mesons obtain mass via tachyon condensation. Then evaluating the properties of a pion, one can reproduce Gell-Mann-Oakes-Renner relation.


Gauge-gravity correspondence Tachyon Condensation QCD AdS-CFT Correspondence 


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Authors and Affiliations

  1. 1.Institut des Hautes Études ScientifiquesBures-sur-YvetteFrance

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