Classic and quantum gravity

Field of study: Astronomy and physics
Description: This line of research encompasses general relativity, extensions of general relativity, and quantum effects in gravitation. Among the extensions of general relativity of interest are scalar-tensor theories, theories that violate the usual conservation of the energy-momentum tensor, unimodular gravity, and other more complex approaches. The study of quantum effects in gravitation is motivated by quantum field theory in curved spacetimes, quantum gravity, or different interpretations of quantum mechanics. The developments considered range from more theoretical aspects, focused on foundations and the search for new solutions, to tests using post-Newtonian expansions in the solar system or beyond, gravitational waves, and observational data from neutron stars and black holes. Active participation in international gravitational wave collaborations, particularly LIGO-Virgo-KAGRA and the Einstein Telescope, is also highlighted.