$GRAV gravity

Latest papers

1. Topological black holes of Einsteinian cubic gravity and Born-Infeld-type electrodynamics gr-qc · 24 Sep · 2 hits

   In this paper, we examine the new black holes of Einsteinian cubic gravity within the framework of Born-Infeld-type electrodynamics. Initially, we establish the differential…

2. Nonlinear Stability of 3D Muskat Bubbles math.AP · 24 Sep · 1 hit

   …paper studies the three-dimensional Muskat problem for two immiscible fluids in a porous medium subject to gravity and surface tension. We consider the setting in which one fluid forms a bounded bubble surrounded by…

3. The Optical Expansion Scalar in Cosmological Perturbation Theory astro-ph.CO · 24 Sep · 1 hit

   …tests of cosmological observations and possibly probing departures from FLRW cosmology and modified gravity theories. The formalism developed and presented here provides the foundation for future studies into…

4. A Cartan-geometrical perspective on torsion and non-metricity gr-qc · 24 Sep · 2 hits

   …naturally describe torsion and non-metricity respectively. Cartan-geometric formulations of teleparallel gravity and symmetric teleparallelism are discussed in addition to further manifestations of non-metricity in…

5. Real-Time Force Regulation for Whole-Hand Dexterous Grasping cs.RO · 24 Sep · 1 hit

   …a grasp, maintain it under disturbances, and regrasp after losing the object. Simulation experiments without gravity demonstrate improved grasp retention over fixed-allocation and fingertip-only execution under…

6. Hawking radiation and graybody factor of slightly deformed Schwarzschild black holes gr-qc · 24 Sep · 1 hit

   …Reissner-Nordstr\"om, Bardeen, Hayward, Simpson-Visser, as well as geometries inspired by loop quantum gravity. In general, the deformations lead to colder horizons than Schwarzschild, and their effect on the…

7. Infrared Screening of the Cosmological Constant hep-th · 24 Sep · 1 hit

   …field are progressively taken into account. Considering the Einstein-Hilbert+$R^2$ truncation of gravity, we find that in a wide region of the parameter space the theory develops instabilities that give…

8. Fiber-based scanning levitated nanoparticle force sensor near a metalized membrane physics.optics · 24 Sep · 1 hit

   …resolution in high-vacuum at micron range from the membrane, showing promise for future improved tests of gravity at short distances and other surface force investigations. By using charged nanospheres, we expect…