The present review intends to provide an overall picture of the research concerning classical
unified field theory, worldwide, in the decades between the mid-1930 and mid-1960. Main …

The relativistic treatment of spin is a fundamental subject which has an old history. In various
physical contexts it is necessary to separate the relativistic total angular momentum into an …

We study the transport properties of topological insulators, encoding them in a generating
functional of gauge and gravitational sources. Much of our focus is on the simple example of …

A bstract Recent work has shown how on-shell three-point amplitudes in gauge theory and
gravity, representing the coupling to massive particles, correspond in the classical limit to the …

We present a geometric theory of nonlinear solids with distributed dislocations. In this theory
the material manifold—where the body is stress free—is a Weitzenböck manifold, that is, a …

We consider spatially homogeneous and isotropic cosmologies with non-vanishing torsion,
which assumes a specific form due to the high symmetry of these universes. Using covariant …

We study the possible existence of static traversable wormholes without invoking exotic
matter in the framework of the Einstein–Cartan theory. A family of exact static, spherically …

This article presents an exhaustive classification of metric-affine theories according to their
scale symmetries. First it is clarified that there are three relevant definitions of a scale …

In the framework of Metric-Affine Gravity, the existing correspondence between the Einstein
tensor and the energy-momentum tensor of matter provided by General Relativity is …

We discuss the quantum dynamics of a Dirac fermion particle in the Poincaré gauge
gravitational field. The minimal as well as the Pauli-type nonminimal coupling of a fermion …