180 citations
- ETH ZurichCH35 papers
- Heidelberg Institute for Theoretical StudiesDE4 papers
- Heidelberg UniversityDE4 papers
- Perimeter InstituteCA4 papers
- Austrian Academy of SciencesAT3 papers
- Harvard UniversityUS3 papers
- Instituto de Física TeóricaES3 papers
- University of ZurichCH3 papers
- Case Western Reserve UniversityUS2 papers
- Centre de Physique ThéoriqueFR2 papers
- École PolytechniqueFR2 papers
- European Organization for Nuclear ResearchCH2 papers
4 papers · 1 filter
Homogeneous and isotropic cosmology in general teleparallel gravity
Lavinia Heisenberg, Manuel Hohmann, Simon Kuhn
We derive the most general homogeneous and isotropic teleparallel geometries, defined by a metric and a flat, affine connection. We find that there are five branches of connection…
Past-directed scalar field gradients and scalar-tensor thermodynamics
Andrea Giusti, Serena Giardino, Valerio Faraoni
We refine and slightly enlarge the recently proposed first-order thermodynamics of scalar-tensor gravity to include gravitational scalar fields with timelike and past-directed grad…
Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity
Valerio Faraoni, Serena Giardino, Andrea Giusti +1
We revisit the analogy between a minimally coupled scalar field in general relativity and a perfect fluid, correcting previous identifications of effective temperature and chemical…
Peculiar thermal states in the first-order thermodynamics of gravity
Valerio Faraoni, Andrea Giusti, Sonia Jose +1
In the context of the recently proposed first-order thermodynamics of scalar-tensor gravity, we discuss the possibility of zero-temperature states of equilibrium other than Einstei…