Examinando por Autor "Silva, G.A."

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  • Miniatura
    Ítem
    Toward precision holography in type IIA with Wilson loops
    (Springer Verlag, 2018-08) Aguilera-Damia, J.; Faraggi, A.; Pando Zayas, L.A.; Rathee, V.; Silva, G.A.
    We study the one-loop effective action of certain classical type IIA string configurations in AdS4 × ℂℙ3. These configurations are dual to Wilson loops in the N= 6 U(N)k × U(N)−k Chern-Simons theory coupled to matter whose expectation values are known via supersymmetric localization. We compute the one-loop effective actions using two methods: perturbative heat kernel techniques and full ζ-function regularization. We find that the result of the perturbative heat kernel method matches the field theory prediction at the appropriate order while the ζ-function approach seems to lead to a disagreement. © 2018, The Author(s).
  • Miniatura
    Ítem
    Zeta-function regularization of holographic Wilson loops
    (American Physical Society, 2018-08) Aguilera-Damia, J.; Faraggi, A.; Pando Zayas, L.A.; Rathee, V.; Silva, G.A.
    Using ζ-function regularization, we study the one-loop effective action of fundamental strings in AdS5×S5 dual to the latitude 14-BPS Wilson loop in N=4 super-Yang-Mills theory. To avoid certain ambiguities inherent to string theory on curved backgrounds we subtract the effective action of the holographic 12-BPS Wilson loop. We find agreement with the expected field theory result at first order in the small latitude angle expansion but discrepancies at higher order. © 2018 authors. Published by the American Physical Society.