Holevo information of black hole mesostates

Abstract

We define a bulk wormhole geometry interpolating between horizons of differing size and determine characteristics of the Hubeny-Rangamani-Takayanagi surface in these geometries. This construction is dual to black hole mesostates, an intermediate coarse-graining of states between black hole microstates and the full black hole state. We analyze the distinguishability of these objects using the recently derived holographic Holevo information techniques, demonstrating novel phase transition behavior for such systems.