We examine the quantum gravitational entanglement of two test masses in the context of
linearized general relativity with specific nonlocal interaction with matter. To accomplish this …

We review the fate of the Ostrogradsky ghost in higher-order theories. We start by recalling
the original Ostrogradsky theorem and illustrate, in the context of classical mechanics, how …

This article aims to study nonlocal Lagrangians with an infinite number of degrees of
freedom. We obtain an extension of Noether's theorem and Noether's identities for such …

We study exact impulsive gravitational waves propagating in anti–de Sitter spacetime in the
context of the ghost-free infinite derivative gravity. We show that the source-free theory does …

This thesis is devoted to the systematic study of non-local theories that respect Lorentz
invariance and are devoid of new, unphysical degrees of freedom. Such theories are …

We solve the nonlocal equation-e-ℓ 2□□ ϕ= J for (i) static scalar fields in static spacetimes
and (ii) time-dependent scalar fields in ultrastatic spacetimes. Corresponding equations are …

We study exact solutions of the infinite derivative gravity with null radiation which belong to
the class of almost universal Weyl type III/N Kundt spacetimes. This class is defined by the …

We study the retarded field sourced by a uniformly accelerated particle in a nonlocal scalar
field theory. While the presence of nonlocality regularizes the field at the location of the …

In the context of ghost-free infinite derivative gravity we consider the single graviton
exchange either between two spinless particles or between a spinless particle and a photon …

We present the ghost-free infinite-derivative extensions of the spherically reduced gravity
(SRG) and Callan-Giddings-Harvey-Strominger (CGHS) theories in two space-time …