The study of general two-dimensional models of gravity allows to tackle basic questions of
quantum gravity, bypassing important technical complications which make the treatment in …

We review (mainly) quantum effects in the theories where the gravity sector is described by
metric and dilaton. The one-loop effective action for dilatonic gravity in two and four …

This book is the result of several years of work by the authors on different aspects of zeta
functions and related topics. The aim is twofold. On one hand, a considerable number of …

A bstract We consider different sets of AdS 2 boundary conditions for the Jackiw-Teitelboim
model in the linear dilaton sector where the dilaton is allowed to fluctuate to leading order at …

We investigate Hawking radiation from two-dimensional dilatonic black holes using standard
quantization techniques. In the background of a collapsing black-hole solution the …

This review deals with the theory of four-fermion interactions in curved spacetime. Starting
with the D-dimensional Minkowski spacetime (2≤ D≤ 4) the effective potential in the …

We construct an effective model for gravity of a central object at large scales. To leading
order in the large radius expansion we find a cosmological constant, a Rindler acceleration …

A bstract We consider on the bulk side extensions of the Sachdev-Ye-Kitaev (SYK) model to
Yang-Mills and higher spins. To this end we study generalizations of the Jackiw-Teitelboim …

We discuss some classical and quantum properties of 2d gravity models involving metric
and a scalar field. Different models are parametrized in terms of a scalar potential. We show …

We provide a concise approach to generalized dilaton theories with and without torsion and
coupling to Yang-Mills fields. Transformations on the space of fields are used to trivialize the …