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The notion of generalized gravitational entropy introduced by Lewkowycz andMaldacena allows, via the AdS/CFT correspondence, to calculate CFT entanglemententropies. We adapt the method to the case where flavor branes are present andtreated in the probe approximation. This allows to calculate the leading flavorcorrection to the CFT entanglement entropy from the on-shell action of theprobe, while dealing with the backreaction is avoided entirely and from theoutset. As an application we give concise derivations for the contribution ofmassless and massive flavor degrees of freedom to the entanglement entropy inN=4 SYM theory.

Generalized gravitational entropy of probe branes: flavor entanglement holographically