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DTSTART;TZID=America/Santiago:20230524T140000
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DTSTAMP:20260505T084259
CREATED:20230517T192814Z
LAST-MODIFIED:20230517T223508Z
UID:6371-1684936800-1684944000@holography.cl
SUMMARY:Cristóbal Corral  Universidad Arturo Prat
DESCRIPTION:[vc_row][vc_column][vc_column_text]Axial Anomaly in Nonlinear Conformal Electrodynamics \nAbstract: In this talk\, we present the axial anomaly of Dirac spinors on gravitational instanton backgrounds in the context of nonlinear electrodynamics. In order to do so\, we consider Einstein gravity minimally coupled to a recently proposed conformal electrodynamics that enjoys duality transformation invariance. These symmetries allow us to generalize the Eguchi-Hanson configuration while preserving its geometry. We then compute the Dirac index of the nonlinearly charged Eguchi-Hanson and Taub-NUT configurations. We find that there is an excess of positive chiral Dirac fermions over the negative ones which triggers the anomaly.\n \n[/vc_column_text][/vc_column][/vc_row]
URL:https://holography.cl/activity/cristobal-corral-universidade-arturo-prat/
LOCATION:Universidad Andrés Bello\, Campus República\, Echaurren 227\, Santiago\, Chile
CATEGORIES:Seminars
ATTACH;FMTTYPE=image/png:https://holography.cl/wp-content/uploads/2023/05/PosterCristobalCorral.png
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