Bortoluzzi, D. Vignotto, D. Zambotti, A. Armano, M. Audley, H. Baird, J. Binetruy, P. Born, M. Castelli, E. Cavalleri, A.
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LISA Pathfinder is a technology demonstrator space mission, aimed at testing key technologies for detecting gravitational waves in space. The mission is the precursor of LISA, the first space gravitational waves observatory, whose launch is scheduled for 2034. The LISA Pathfinder scientific payload includes two gravitational reference sensors (GRSs...

Delavande, Thomas

Point essentiel de l’essai : équations sources champs pour la gravitation.Sur le modèle du couple champ magnétique et champ électrique, on propose d’interpréter la pulsation et le vecteur d’onde comme un couple champ pulsation et champ vecteur d’onde.En appliquant le théorème d’Ampère (c’est-à-dire suivant une analogie avec l’équation source champ ...

Baulieu, Laurent

This paper proposes a definition of gravitational observables and of their path integral formula within the framework of ADM foliation and the choice of unimodular gauge classes. The method enforces a BRST invariant gauge fixing of the lapse and shift fields. It yields the quantum level extension of the known classical property that the conformal c...

Haraux, Alain

The usual equation for both motions of a single planet around the sun and electrons in the deterministic Rutherford-Bohr atomic model is conservative with a singular potential at the origin. When a dissipation is added, new phenomena appear. It is shown that whenever the momentum is not zero, the moving particle does not reach the center in finite ...

Godet, Victor Marteau, Charles
Published in
Journal of High Energy Physics

We describe new boundary conditions for AdS2 in Jackiw-Teitelboim gravity. The asymptotic symmetry group is enhanced to Diff(S1) ⋉ C∞(S1) whose breaking to SL(2, ℝ) × U(1) controls the near-AdS2 dynamics. The action reduces to a boundary term which is a generalization of the Schwarzian theory and can be interpreted as the coadjoint action of the wa...

Bourgoin, A. Bouquillon, S. Hees, A. Le Poncin-Lafitte, C. Bailey, Q.G. Howard, J.J. Angonin, M.-C. Francou, G. Chabé, J. Courde, C.
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The possibility for Lorentz/CPT-breaking, which is motivated by unification theories, can be systematically tested within the standard-model extension framework. In the pure gravity sector, the mass dimension 5 operators produce new Lorentz and CPT-breaking terms in the 2-body equations of motion that depend on the relative velocity of the bodies. ...

Estevez, Dimitri Mours, Benoît Pradier, Thierry

The gravitational-wave detectors outputs from the LIGO and Virgo collaborations have been a source of scientific results of prime importance in various domains such as astrophysics, cosmology or fundamental physics. With the upgrades of the detectors and their improved sensitivities, new challenges are set for these instruments calibration. A calib...

Brax, Philippe Kaneta, Kunio Mambrini, Yann Pierre, Mathias

We generalize dark matter production to a two-metric framework whereby the physical metric, which couples to the Standard Model (SM), is conformally and/or disformally related to the metric governing the gravitational dynamics. We show that this setup is naturally present in many Ultra Violet (UV) constructions, from K\"ahler moduli fields to tenso...

Carrasco, John Joseph M. Rodina, Laurentiu Yin, Zanpeng Zekioglu, Suna

Invoking increasingly higher dimension operators to encode novel UV physics in effective gauge and gravity theories traditionally means working with increasingly more finicky and difficult expressions. We demonstrate that local higher derivative supersymmetric-compatible operators at four-points can be absorbed into simpler higher-derivative correc...

Chavanis, Pierre-Henri

We study the Jeans mass-radius relation of Bose-Einstein condensate dark matter in Newtonian gravity. We show at a general level that it is similar to the mass-radius relation of Bose-Einstein condensate dark matter halos [P.H. Chavanis, Phys. Rev. D {\bf 84}, 043531 (2011)]. Bosons with a repulsive self-interaction generically evolve from the Thom...