Examinando por Autor "Pando Zayas, Leopoldo A."

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    Beyond AdS2/dCFT1: insertions in two Wilson loops
    (Springer Science and Business Media Deutschland GmbH, 2023-10) Correa, Diego H.; Faraggi, Alberto; Mück, Wolfgang; Pando Zayas, Leopoldo A.; Silva, Guillermo
    We consider two-point correlators of local operator insertions in a system of two Wilson-Maldacena loops in N = 4 supersymmetric Yang-Mills theory on both sides of the AdS/CFT correspondence. On the holographic side the correlator of two Wilson-Maldacena loops is given by a classical string world-sheet which in one phase connects two asymptotically AdS2 regions and in the other phase is given by two disconnected AdS2 caps; this configuration breaks supersymmetry as well as conformal invariance. We present a complete systematic account of the string world-sheet fluctuations, including the fermionic sector, and study the behavior of the holographic two-point correlators. On the field theory side we compute certain two-point correlators of local operator insertions by resumming sets of ladder diagrams. Our results demonstrate the efficacy of previously developed methods in tackling this non-conformal, non-susy regime. © 2023, The Author(s).
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    One-loop holography with strings in AdS4 × ℂℙ3
    (Springer Verlag, 2019-10) David, Marina; Ardón, Rodrigo de León; Faraggi, Alberto; Pando Zayas, Leopoldo A.; Silva, Guillermo A.
    We compute the one-loop effective action of string configurations embedded in AdS4 × ℂℙ3 which are dual to 16-BPS latitude Wilson Loops in the ABJM theory. To avoid ambiguities in the string path integral we subtract the 12-BPS case. The one-loop determinants are computed by Fourier-decomposing the two dimensional operators and then using the Gel’fand-Yaglom method. We comment on various aspects related to the regularization procedure, showing the cancellation of a hierarchy of divergences. After taking into account an IR anomaly from a change in topology, we find a precise agreement with the field theory result known from supersymmetric localization. © 2019, The Author(s).