Generalized Gravitational Entropy from Total Derivative Action

Understand

We investigate the generalized gravitational entropy from total derivative terms in the gravitational action.

• Following the method of Lewkowycz and Maldacena, we find that the generalized gravitational entropy from total derivatives vanishes.
• We compare our results with the work of Astaneh, Patrushev, and Solodukhin.
• We find that if total derivatives produced nonzero entropy, the holographic and the field-theoretic universal terms of entanglement entropy would not match.