Renyi mutual information in holographic warped CFTs

The study of Renyi mutual information (RMI) sheds light on the AdS/CFT correspondence beyond classical order. In this article, we study the Renyi mutual information between two intervals at large distance in two-dimensional holographic warped conformal field theory, which is conjectured to be dual to gravity on AdS(3) or warped AdS(3) spacetimes under Dirichlet-Neumann boundary conditions. By using the operator product expansion of twist operators up to level 3, we read the leading oder and the next-to-leading order RMI in the large central charge and small cross-ratio limits. The leading order result is furthermore confirmed using the conformal block expansion. Finally, we match the next-to-leading order result by a 1-loop calculation in the bulk.