Gravitational waves (GWs) were recently detected for the first time. This revolutionary
discovery opens a new way of learning about particle physics through GWs from first-order …

This article reviews recent developments in tests of fundamental physics using atoms and
molecules, including the subjects of parity violation, searches for permanent electric dipole …

Neural network scaling has been critical for improving the model quality in many real-world
machine learning applications with vast amounts of training data and compute. Although this …

The star S2 orbiting the compact radio source Sgr A* is a precision probe of the gravitational
field around the closest massive black hole (candidate). Over the last 2.7 decades we have …

A gravitational anomaly is found at weak gravitational acceleration g N≲ 10− 9 ms− 2 from
analyses of the dynamics of wide binary stars selected from the Gaia DR3 database that …

We discuss equivalent representations of gravity in the framework of metric-affine
geometries pointing out basic concepts from where these theories stem out. In particular, we …

Black hole (BH) shadows can be used to probe new physics in the form of ultralight particles
via the phenomenon of superradiant instability. By directly affecting the BH mass and spin …

The Event Horizon Telescope (EHT) collaboration has recently released the first image of a
black hole (BH), opening a new window onto tests of general relativity in the strong field …

According to the weak equivalence principle, all bodies should fall at the same rate in a
gravitational field. The MICROSCOPE satellite, launched in April 2016, aims to test its …

A stochastic background of gravitational waves could be created by the superposition of a
large number of independent sources. The physical processes occurring at the earliest …